This file is raw output from pdftotext and may not be ideal for distribution. If you are a maintainer for Hackipedia, please sit down when you have time and clean this text version up. Source PDF: /mnt/fw-js/docs/Engineering/Standards/NASA Engineering Drawing Standards Manual.pdf Like all conversions the text below should be fully readable as UTF-8 unicode text. --------------------------------------------------------------- GSFC X-673-64-1F ENGINEERING DRAWING STANDARDS MANUAL August 1994 AND SPA ICS C UT E A AD N AERO M INISTRA AL ON TIO TI N NA U. S. A. X-673-64-1F Supersedes GSFC X-673-64-1E/July 1991 ENGINEERING DRAWING STANDARDS MANUAL Mechanical Engineering Branch Goddard Space Flight Center Greenbelt, Maryland August 1994 S AND SPA U TIC C E A AD AL AERON M INISTRA ON TIO TI N NA U. S. A. National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland 20771 1994 DESCRIPTION OF REVISION T h i s r e v i s i o n , w h i c h s u p e r s e d e s t h e G o d d ar d S p a c e F l i g h t C e n t e r ( G S F C ) S t a n d a r d X - 6 7 3 - 6 4 - 1 E , E n g in e e r in g D r a win g S ta n d a r d s M a n u a l, is in te n d e d to u p d a te a n d r e f le c t th e la te s t f o r ma ts a n d s ta n d a r d s a d o p te d b y G S F C. T h e f o llo w in g is a s u mma r y o f th e p r in c ip a l c h a n g e s a n d imp r o v e me n ts in c o r p o r a te d in this issue: a. A d d itio n o f Co mp o s ite Ma te r ia l D r a w in g d e f in itio n . b . C h a n g in g o f t h e s i g n a t u r e t o a p r i n t e d n a me i n T i t l e b lo c k s . c. N e w e x a mp l e o f t h e M e t r i c D r a w i n g s f o r ma t a n d t o l e r a n c e p r e s e n t a t i o n . d . I mp r o v e d p l a c e me n t o f v i e w s o n T y p e s o f D r a w i n g s s a mp l e s t o p r e v e n t u n n e c e s s a r y r e w o r k o f d r a w in g s a t a la te r d a te . e. N e w E n g in e e r i n g O r d e r ( E O ) f o r ms a d d e d ; o ld E O f o r ms w i l l b e p h a s e d o u t. f. A d d itio n a l n o te s o n v a r io u s to p ic s a d d e d to N o te E x a mp le s s e c tio n . g . D e le tio n o f mic r o f ilmin g r e q u ir e me n ts f o r d r a w in g f o r ma t. h . F lo w c h a r t f o r f lig h t p r o j e c ts r e d e f in e d . iii iv PREFACE T h e G S F C E n g in e e r in g D r a win g S ta n d a r d s M a n u a l i s t h e o f f i c i a l s o u r c e f o r t h e r e q u ir e me n ts a n d in te r p r e ta tio n s to b e u s e d in th e d e v e lo p me n t a n d p r e s e n ta tio n o f e n g in e e r in g d r a w in g s a n d r e la te d d o c u me n ta tio n f o r th e G S F C. T h e M e c h a n i c a l E n g i n e e r i n g B r a n c h , M e c h a n i c a l S y s t e ms D iv is io n , h a s b e e n d e le g a te d t h e r e s p o n s i b i l i t y f o r i n t e r p r e t a t i o n , p e r i o d ic u p d a t e s , a n d d i s t r ib u t i o n o f t h e G S F C E n g in e e r in g D r a win g S ta n d a r d s M a n u a l. A ll E n g in e e r in g D ir e c to r a te d e s ig n o r g a n iz a tio n s a n d th e ir c o n tr a c to r s s h a ll a d h e r e to th e r e q u ir e me n ts o f th is ma n u a l w h e n p r e p a r in g G S F C e n g in e e r in g d o c u me n ta tio n f o r f lig h t h a r d w a r e a n d g r o u n d s u p p o r t s ys te ms . Co mme n ts o r in q u ir ie s c o n c e r n in g th is ma n u a l s h o u ld b e d ir e c te d to th e Me c h a n ic a l E n g in e e r in g Br a n c h , Co d e 7 2 2 . D r . A lla n S h e r ma n D ir e c to r o f E n g in e e r in g v vi ENGINEERING DRAWING STANDARDS MANUAL vii TABLE OF CONTENTS INTRODUCTION ....................................................................................................... 1 1. DRAWING ELEMENTS .......................................................................................... 3 1.1. Drawing Sizes ................................................................................................. 3 1.2. Multisheet Drawings ........................................................................................ 3 1.3. Zoning ............................................................................................................ 4 1 . 4 . T i t l e B l o c k an d R e v i s i o n B l o c k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1 . 5 . D r a w i n g F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 2. NOMENCLATURE ................................................................................................ 11 2.1. Drawing Title ................................................................................................. 11 2.2. Abbreviations ................................................................................................. 12 2.3. List of Material .............................................................................................. 14 2 . 3 . 1 . R e q u i r e me n t s o n t h e B o d y o f t h e D r a w i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 2 . 3 . 2 . R e q u i r e me n t s i n t h e L i s t o f M a t e r i a l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 2.4. Notes on Drawings .......................................................................................... 15 2 . 4 . 1 . S e c u r i t y C l a s s i f i c at i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5 2.4.2. Note Location........................................................................................ 15 2 . 4 . 3 . N u mb e r i n g o f N o t e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 2 . 4 . 4 . N o t e E x a mp l e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 2 . 4 . 4 . 1 . D i me n s i o n N o t e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 2.4.4.2. Heat Treating Notes.................................................................... 17 2 . 4 . 4 . 3 . J o i n i n g Me t h o d N o t e s ( w e l d i n g , b r a z i n g , e t c . ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 8 2.4.4.4. Plating and Coating Notes ........................................................... 18 2.4.4.5. Surface Preparation Notes ........................................................... 19 2.4.4.6. Testing and Inspection Notes ....................................................... 20 2.4.4.7. Threaded Inserts — Cleaning and Installation Notes ....................... 20 2.4.4.8. Miscellaneous Notes ................................................................... 21 2 . 4 . 4 . 9 . I n f o r ma t i o n a l N o t e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 2.4.5. Local Character Notes ............................................................................ 23 2 . 4 . 6 . G e n e r a l D i me n s i o n a l T o l e r a n c e N o t e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 2 . 5 . S p e c i f i c a t io n C a l l o u t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 3. DRAFTING PRACTICES ....................................................................................... 25 3.1. General .......................................................................................................... 25 3.2. Lines ............................................................................................................. 25 3.2.1. Ink Lines and Plotted Lines .................................................................... 25 3.2.2. Pencil Lines .......................................................................................... 27 3.2.3. Types of Lines....................................................................................... 27 3.2.3.1. Center Lines .............................................................................. 27 3 . 2 . 3 . 2 . D i me n s i o n L i n e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 8 3.2.3.3. Leaders ..................................................................................... 28 3.2.3.4. Break Lines ............................................................................... 28 3.2.3.5. Phantom Lines ........................................................................... 29 3.2.3.6. Sectioning Lines ........................................................................ 29 3.2.3.7. Extension Lines ......................................................................... 30 3.2.3.8. Hidden Lines ............................................................................. 30 3.2.3.9. Stitch Lines ............................................................................... 30 3.2.3.10. Outlines or Visible Lines........................................................... 30 3.2.3.11. Datum Lines ............................................................................ 30 3 . 2 . 3 . 1 2 . C u t t i n g - P l a n e / V ie w i n g - P l a n e L i n e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 0 3 . 3 . L e t t e r i n g a n d N u me r a l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1 3.3.1. Style .................................................................................................... 31 3.3.2. Heights ................................................................................................. 32 3.4. Scale ............................................................................................................. 32 3.5. Positioning the Part on the Drawing .................................................................. 33 X-673-64-1F G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d viii ENGINEERING DRAWING STANDARDS MANUAL 3.5.1. Picturization ......................................................................................... 33 3.5.2. Sections ................................................................................................ 34 3.5.3. Views ................................................................................................... 36 3.5.4. Details.................................................................................................. 37 3 . 5 . 5 . I d e n t i f i c a t i o n o f S e ct i o n s , V i e w s , a n d D e t a i l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 3 . 5 . 6 . L o c a t i n g S e c t i o n s, V i e w s , a n d D e t a i l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 8 4. TYPES OF DRAWINGS ......................................................................................... 39 4.1. Altered or Selected Vendor Part Drawing .......................................................... 39 4 . 2 . A s s e mb l y D r a w i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 0 4.3. Detail Drawing ............................................................................................... 41 4.4. Drawing Tree ................................................................................................. 42 4 . 5 . E l e c t r i c a l / E l e c tr o n i c D r a w i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 4 . 5 . 1 . E l e c t r i c a l a n d E l e c t r o n i c S y mb o l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 4 . 5 . 2 . E l e c t r i c a l a n d E l e c t r o n i c D i a g r a ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 4 . 6 . I n s e p a r a b l e A s s e mb l y D r a w i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 4 . 7 . I n s t a l l a t i o n A s s e mb l y D r a w i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 4.8. Interface Control Drawing ............................................................................... 46 4.9. Matched-Set Drawing ...................................................................................... 48 4 . 1 0 . M e c h a n i c a l S c h e ma t i c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 9 4.11. Modification Drawing .................................................................................... 51 4.12. Outline Drawing ........................................................................................... 51 4.13. Source Control Drawing ................................................................................. 53 4 . 1 4 . S p e c i f i c a t i o n Co n t r o l D r a w i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 4.15. Standard Part Drawing ................................................................................... 56 4.16. Tabulated Drawing ........................................................................................ 56 4.17. Tooling Drawing ........................................................................................... 57 4 . 1 8 . C o mp o s i t e M a t e r i a l D r a w i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 5. NUMBERING SYSTEM FOR DRAWINGS AND SUPPORTING DOCUMENTATION . 60 5 . 1 . P a r t N u mb e r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1 5 . 2 . F i n d o r I t e m N u mb e r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 5.3. Order of Precedence of Specifications and Standards .......................................... 62 5.3.1. Group I ................................................................................................. 62 5.3.2. Group II ............................................................................................... 62 5.3.3. Group III .............................................................................................. 63 5.3.4. Group IV .............................................................................................. 63 5.3.5. Group V................................................................................................ 63 6. ENGINEERING ORDER ........................................................................................ 64 6 . 1 . G e n e r a l R e q u i r e me n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 6 . 2 . F o r ma t S a mp l e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 7. DRAWING REVISIONS ......................................................................................... 68 7 . 1 . R e v i s i o n Me t h o d s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8 7.2. Revision Identification .................................................................................... 68 7.3. Revision of Multisheet Drawings ...................................................................... 68 7.4. Revision Recording ......................................................................................... 68 7.5. Redrawn or Replaced Drawings ........................................................................ 70 8. PARTS LIST AND INDEX LIST ............................................................................. 71 8.1. Definitions ..................................................................................................... 71 8 . 2 . R e q u i r e me n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1 8.2.1. List Preparation ..................................................................................... 71 8 . 2 . 2 . L i s t F o r ma t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 8.2.3. Revision Identification ........................................................................... 72 8 . 2 . 4 . D e l e t i n g I t e ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 8 . 2 . 5 . A d d i n g I t e ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 8.3. Cover Sheet.................................................................................................... 72 8 . 3 . 1 . F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 X-673-64-1F G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL ix 8.3.2. Entries.................................................................................................. 72 8 . 4 . P a r t s L i s t Co n t i n u a t i o n S h e e t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 8 . 4 . 1 . F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 8.4.2. Entries.................................................................................................. 75 8 . 5 . I n d e x L i s t Co n t i n u a t i o n S h e e t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 8 . 5 . 1 . F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 8.5.2. Entries.................................................................................................. 77 8 . 6 . F i n d o r I t e m N u mb e r S ys t e m o f I d e n t i f i c a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 9 8.6.1. Definition ............................................................................................. 79 8 . 6 . 2 . A p p l i c a t i o n a n d L i mi t a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 9 8 . 6 . 3 . D r a w i n g R e q u i r e me n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 0 8.7. List of Material .............................................................................................. 81 8 . 7 . 1 . F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1 8.7.2. Entries.................................................................................................. 81 9. DOCUMENTATION MANAGEMENT ..................................................................... 82 9.1. Typical Drawing Flow for Flight Projects .......................................................... 82 9.2. Archiving....................................................................................................... 83 9 . 3 . C o mp u t e r - A i d e d D e s i g n D r a w i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 9 . 3 . 1 . P r e s e n t a t i o n o f C o mp u t e r - G e n e r a t e d D a t a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 9 . 3 . 2 . D e v e l o p i n g a n d U s i n g C o mp u t e r - G e n e r a t e d D r a w i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 9.3.3. Specification Data ................................................................................. 84 1 0 . D E S I G N R E F E R E N C E S , S TA N D A R D S , A N D S P E C I F I C A T I O N S . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 1 0 . 1 . D i me n s i o n i n g a n d T o l e r a n c i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 1 0 . 1 . 1 . D i me n s i o n i n g a n d T o l e r a n c i n g P r a c t i c e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 1 0 . 1 . 2 . S t a t e me n t s o n D i me n s i o n i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 1 0 . 2 . M e t r i c D i me n s i o n i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 1 0 . 2 . 1 . S I U n i t s a n d S y mb o l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 10.2.2. Unit Conversions ................................................................................. 89 1 0 . 2 . 2 . 1 . C o n v e r s i o n o f D i me n s i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 9 10.2.2.2. Unit Rounding.......................................................................... 89 10.3. Design References ......................................................................................... 92 10.4. Control of Surface Roughness......................................................................... 93 10.4.1. Surface Texture ................................................................................... 93 1 0 . 4 . 2 . S u r f a c e T e x t u r e S y mb o l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 10.4.3. Surface Texture Standards..................................................................... 93 10.5. Thread Specifications .................................................................................... 93 10.6. Welding—Fusion and Resistance ..................................................................... 95 10.6.1. General ............................................................................................... 95 1 0 . 6 . 2 . B a s i c W e l d S y mb o l s a n d T h e i r L o c a t i o n S i g n i f i c a n c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 10.7. Outgassing of Spacecraft Materials ................................................................. 95 10.8. Standards and Specifications Index ................................................................. 96 10.8.1. National Bureau of Standards ................................................................ 96 10.8.2. Federal ............................................................................................... 96 10.8.3. Industrial ............................................................................................ 97 10.8.4. Military .............................................................................................. 98 10.8.5. NASA ............................................................................................... 100 1 0 . 9 . S t a n d a r d s a n d S p e c i f i c at i o n s N u me r i c a l I n d e x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 1 A P P E N D I X A . D E S I G N R EV I E W D O s A N D D O N ' T s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 7 INDEX.................................................................................................................... 110 X-673-64-1F G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d x ENGINEERING DRAWING STANDARDS MANUAL X-673-64-1F G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 1 INTRODUCTION T h is d r a w in g s ta n d a r d s ma n u a l e s ta b lis h e s th e c o n v e n tio n s to b e a d h e r e d to b y e n g in e e r in g a n d d r a f tin g p e r s o n n e l in th e p r e p a r a tio n , r e v is io n , a n d c o mp le tio n o f e n g i n e e r i n g d r a w i n g s . T h i s ma n u a l s e t s f o r t h t h e min i mu m r e q u i r e me n t s a c c e p t a b l e a t G S F C f o r th e p r e p a r a tio n o f e n g in e e r in g d r a w in g s f o r f lig h t h a r d w a r e a n d g r o u n d s u p p o r t s ys te ms . T h e r e q u ir e me n ts s p e c if ie d h e r e in a r e e s s e n tia l to th e s ta n d a r d iz a tio n o f p r a c tic e s a n d to a u n if o r m in te r p r e ta tio n o f d r a w in g s . A s ys te m, p a ylo a d , o r c o mp o n e n t a s s e mb ly s h a ll b e c o mp le te ly d e f in e d b y me a n s o f d r a w in g s , in c lu d in g lis ts , s c h e ma tic s , w ir in g d ia g r a ms , a n d s p e c if ic a tio n s , to e n s u r e th a t c o mp o n e n t s f a b r i c a t e d a r e i n a c c o r d a n c e w i t h t h e d e s i g n . T h e d o c u me n t a t i o n i n f o r ma t i o n s h a l l s e r v e a s a p e r ma n e n t r e c o r d . F l i g h t h a r d w a r e s h a l l b e f a b r i c a t e d i n a c c o r d a n c e w i t h t h e a p p r o v e d d e s i g n d o c u me n t s . T h e s e d o c u me n t s s h a l l r e f l e c t t h e c h a r a c t e r i s t i c s a n d a c c e p t a n c e c r i t e r i a f o r a l l ma t e r i a l s , c o mp o n e n t / p a r t s , s u b s y s t e ms , a n d t h e c o mp l e t e s y s t e m. T h e a c c e p t a n c e c r i t e r i a f o r p a r t s a n d ma t e r i a l s s h a l l b e s pe c i f i e d b y s t a n d a r d s p e c i f i c a t i o n s w h e n applicable. E n g in e e r in g d r a w in g s a r e d e f in e d a s th o s e d r a w in g s th a t c o mmu n ic a te th e r e q u ir e me n ts f o r th e ma n u f a c tu r e o f th e e n d - p r o d u c t ite ms , th e ir a s s e mb ly, a n d th e ir in s ta lla tio n in th e e n d p r o d u c t. T h e e n g in e e r in g d r a w in g s p r e p a r e d b y G S F C d e s ig n p e r s o n n e l o r c o n tr a c to r s o n G S F C d r a w in g f o r ma t u s in g G S F C d r a w in g n u mb e r s s h a ll b e k n o w n a s “ G o v e r n me n t D e s ig n A c tiv ity D r a w in g s . ” P a r ts ma d e to th e s e d r a w in g s typ ic a lly w o u ld b e ma n u f a c tu r e d th r o u g h th e F a b r ic a tio n E n g in e e r in g Br a n c h , E n g in e e r in g S e r v ic e s D iv is io n , G S F C. “ C o n t r a c t o r D e s i g n A c t i v i t y D ra w i n g s ” ” ” ” ( w h i c h a r e a c o mp a n y 's d r a w i n g s b e a r i n g t h e c o mp a n y n a me , a d d r e s s , f e d e r a l c o d e id e n tif ic a tio n , a n d d r a w in g n u mb e r ) s h o u ld b e u s e d w h e n t h e c o mp a n y i s d e s i g n i n g a n d d e l i v e r in g t h e f i n i s h e d p r o d u ct i n a c c o r d a n c e w i t h t h e t e r ms o f a N A S A c o n t r a c t . The Design Activity shall be defined as an activity having responsibility for the design o f a n i t e m o r s y s t e m. T h e a c t i v i t y ma y b e a g o v e r n me n t e n t i t y , a c o n t r a c t o r , a v e n d o r , o r a n o th e r o r g a n iz a tio n s u c h a s a u n iv e r s ity. A l t h o u g h g e n e r a l l y i n a c c o r d a n c e w i t h t h e D e p ar t me n t o f D e f e n s e a n d i n d u s t r y p r a c t i c e s a n d p r o c e d u r e s , th is d r a w in g s ta n d a r d s man u a l d o e s c o n ta in s p e c if ic d if f e r e n c e s a n d e x c e p t i o n s t o E n g in e e r in g D r a win g P r a c tic e s, MI L - S T D - 1 0 0 E . T h is ma n u a l, w h ile n o t in te n d e d a s a ma n u a l o f in s tr u c tio n in th e b a s ic p r in c ip le s o f d r a f tin g , d o e s s e t f o r th th e min i mu m r e q u i r e me n t s a c c e p t a b l e a t t h e G S F C. O n e o f t h o s e r e q u i r e me n t s i s t h a t p e r s o n s e n g a g e d in th e p r e p a r a tio n o f d r a w in g s s h a ll h a v e a th o r o u g h u n d e r s ta n d in g o f th e f u n d a me n ta ls o f d r a f tin g a n d g e o me tr ic a l d ime n s io n in g a n d to le r a n c in g ( in a c c o r d a n c e w i t h A N S I Y 1 4 . 5 M - 1 9 8 2 , D im e n s io n in g a n d T o le r a n c in g ) in o r d e r to p r o d u c e in te r p r e ta b le d r a w in g s . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 2 ENGINEERING DRAWING STANDARDS MANUAL X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 3 1. DRAWING ELEMENTS 1.1. Drawing Sizes T h e f o llo w in g ta b le d e f in e s th e s ta n d a r d d r a w in g s iz e s , a n d th e ir le tte r d e s ig n a tio n s to b e u s e d a t G S F C: Letter Sheet Width Sheet Length Margin Designation (inches) (inches) (inches) B 11 17 3/8 C 17 22 1/2 D 22 34 1/2 E 34 44 1/2 F 28 40 1/2 J 34 48 to 144(a) 1/2(b) Notes: ( a ) L e n g th s f o r “ J ” r o l l s i z e t o b e i n l l - i n c h i n c r e me n t s . ( b ) N o t in c lu s iv e o f a d d e d p r o te c tiv e ma r g in s o f a t le a s t 2 in c h e s o n b o th e n d s o f roll size drawings. 1.2. Multisheet Drawings M u l t i s h e e t d r a w i n g s a r e p e r mi t t e d i n a l l s i z e s . a . T h e f i r s t s h e e t o f a mu l t i s h e e t d r a w i n g s h a l l a l w a y s c o n ta i n t h e c o mp l e t e T i t l e b lo c k , L is t o f Ma te r ia l, Re v is io n Blo c k , a n d g e n e r a l n o te s . b . A l l s h e e t s o f mu l t i s h e e t d r a w i n g s s h a l l b e o f t h e s a me l e t t e r s i z e . U s e o f mu l t i s h e e t d r a w i n g s s h a l l b e f o u n d t o b e a d v a n t a g e o u s f o r c e r t a i n t y p e s o f s c h e ma tic s a n d d ia g r a ms . c. T h e s h e e ts o f “ J ” s iz e d r a w in g s ma y b e a n y o f th e a b o v e - n o te d le n g th s a n d ma y b e in te r mix e d in d if f e r e n t le n g th s . d . S h e e t n u mb e r in g f o r a ll f ir s t s h e e ts s h a ll in c lu d e th e to ta l n u mb e r o f s h e e ts , a s “ S H E E T 1 O F 1 , ” “ S H E E T 1 O F 2 , ” e tc . N u mb e r i n g o f c o n t i n u a t i o n s h e e t s s h a l l b e l i mi t e d t o s t a t i n g t h e s p e c i f i c s h e e t n u mb e r ( e . g . , “ S H E E T 2 , ” “ S H E E T 3 ” ) w i t h o u t s p e c i f y i n g t h e t o t a l n u mb e r o f s h e e t s . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 4 ENGINEERING DRAWING STANDARDS MANUAL 1.3. Zoning V e r tic a l a n d h o r iz o n ta l z o n in g ma y b e u s e d if n e c e s s a r y to p r o v id e o r ie n ta tio n to t h e f i e l d o f d r a w i n g s . Z o n in g i s ma n d a t o r y f o r mu l t i s h e e t d r a w i n g s “ D ” s i z e a n d l a r g e r a n d s i n g l e - s h e e t d r a w i n g s “ E ” s i z e an d l a r g e r . Z o n e s s h a l l b e i d e n t i f i e d b y a l p h a b e t i c a l ( u p p e r c a s e ) a n d n u me r i c a l e n t r i e s i n t h e mar g i n s p a c e s a s i n d i c a t e d in F ig u r e 1 . Z o n e s iz e s s h a ll b e 8 ½ in c h e s ( w id th ) b y 1 1 in c h e s ( le n g th ) f o r “ E ” and “J” size, 7 inches (width) by 10 inches (length) for “F” size, and 5½ inches (width) by 8½ inches (length) for “D” size. SECURITY CLASSIFICATION 5 4 3 2 1 REVISION NOTES HORIZONTAL ZONE IDENTIFICATION NUMBERED FROM RIGHT-HAND EDGE DRAWING NUMBER ON REVERSE FOR PROTECTION OF ROLL-SIZE DRAWINGS SIDE FOR ROLL-SIZE DRAWINGS PREFERRED APPROX. 2-INCH ADDITIONAL MARGIN LOCATION OF FOR PROTECTION OF ROLL-SIZE DRAWINGS GENERAL NOTES DRAWING NUMBER ON REVERSE SIDE FOR ROLL-SIZE DRAWINGS D D APPROX. 2-INCH ADDITIONAL MARGIN ALTERNATE VERTICAL ZONE IDENTIFICATION LOCATION OF C ALPHABETICALLY LETTERED GENERAL NOTES C FROM BOTTOM EDGE B B SECURITY NOTATION (IF REQUIRED) A A TITLE BLOCK 5 4 3 2 1 SECURITY CLASSIFICATION Figure 1: Format for B, C, D, E, F, and J Size Drawings 1.4. Title Block and Revision Block T i t l e b lo c k s a n d r e v is i o n b lo c k s s h a l l b e p r e p a r e d a n d c o mp l e t e d a s f o l l o w s : T h e T i t l e b lo c k o f s i n g le - s h e e t d r a w i n g s , f i r s t s h e e t s o f mu l t i s h e e t d r a w i n g s , a n d r e v is io n b lo c k s s h a ll a p p e a r a s s h o w n in e ith e r F ig u r e 2 a o n p a g e 5 ( d ime n s io n a l s y s t e m/ i n c h e s ) o r F i g u r e 2 b o n p a g e 6 ( d i me n s i o n a l s y s t e m/ mi l l i me t e r s ) . T h e i n f o r ma t i o n r e q u ir e d i n t h e T i t l e b lo c k s h a l l b e a s s p e c i f i e d o r r e f e r e n c e d b y i t e ms 1 t h r o u g h 2 8 , b e l o w . T h e T i t l e b lo c k o f c o n t i n u a t i o n s h e e t s f o r mu l t i s h e e t d r a w in g s s h a ll c o n ta in in f o r ma tio n lis te d in ite ms 1 , 2 , a n d 4 th r o u g h 1 1 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 5 REVISION SYM ZONE DESCRIPTION DATE APPROVAL 24 25 26 27 28 FOLD LINE 24 REV 1 13 12 11 10 9 8 7 6 5 4 3 2 14 15 18 19 20 21 22 23 GD ITEM REQD REQD PART NO. DESCRIPTION MATERIAL MATERIAL SPEC & NO. NO LIST OF MATERIAL UNLESS OTHERWISE SPECIFIED - DIMENSIONS ARE IN INCHES NATIONAL AERONAUTICS AND TOLERANCES: SPACE ADMINISTRATION Goddard Space Flight Center GREENBELT, MARYLAND .XX .XXX FRACTIONS 125 ±.02 ±.005 ±1° ±1/16 NAME INIT DATE DRAWING INTERPRETED PER GSFC-X673-64-1 DESIGNER REMOVE ALL BURRS AND SHARP EDGES R .010 OR CHAMFER MAX. FLIGHT HARDWARE/POST FAB HARDNESS TEST REQ'D DRAWN TITLE HARDNESS TEST NOT REQUIRED NON FLIGHT 16 TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL CHECKED TEST HARDNESS PER ASTM E-18 WHERE INDICATED ON FIELD OF DRAWING THUS APPROVED NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D APPROVED NDE REQUIRED PER S-313-009 CODE APPROVED-STRESS REV THIS DRAWING WAS PRODUCED USING SOFTWARE: VERSION: APPROVED-ENGINEER GD FILE NAME: NEXT ASSY USED ON CODE SCALE WT. SH FOLD LINE Figure 2a: Sample “Title and Revision Block” (Enlarged View) for Dimensional System/Inches X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 6 ENGINEERING DRAWING STANDARDS MANUAL REVISION SYM ZONE DESCRIPTION DATE APPROVAL 24 25 26 27 28 FOLD LINE 24 REV 1 13 12 11 10 9 8 7 6 5 4 3 2 14 15 18 19 16 20 21 22 23 24 GD 17 REQD REQD PART NO DESCRIPTION MATERIAL MATERIAL SPEC & NO ITEM NO LIST OF MATERIAL FLIGHT HARDWARE/POST FAB HARDNESS TEST REQ'D NATIONAL AERONAUTICS AND METRIC SPACE ADMINISTRATION Goddard Space Flight Center GREENBELT, MARYLAND HARDNESS TEST NOT REQUIRED NON FLIGHT TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL NAME INIT DATE HYBRID DRAWING INTERPRETED PER GSFC-X673-64-1 TEST HARDNESS PER ASTM E-18 WHERE INDICATED METRIC/INCH DESIGNER ON FIELD OF DRAWING THUS THIRD ANGLE PROJECTION DRAWN TITLE NON-DESTRUCTIVE EXAMINATION (NDE) NOT REQD NDE REQUIRED PER S-313-009 CODE CHECKED UNLESS OTHERWISE SPECIFIED DIMENSION ARE IN MM THIS DRAWING WAS PRODUCED USING SOFTWARE: VERSION: MECHANICAL ENGINEER DIMENSION TOLERANCES 3.2 FILE NAME: 2 DECIMAL ±0.25 SYSTEMS ENGINEER 1 DECIMAL ±0.5 FINISH DECIMAL ±1 IN ANGLE ±1° ELECTRICAL ENGINEER REV MICRO- RAD/CHAM ±0.5 METERS STRESS ENGINEER GD REMOVE ALL BURRS AND SHARP NEXT ASSY USED ON CODE SCALE WT SH EDGES R 0.25 OR CHAMFER MAX FOLD LINE Figure 2b: Sample “Title and Revision Block” (Enlarged View) for Dimensional System/Millimeters X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 7 1 DRAWING NO.: See page 60. 2 “SH OF ” : E n t e r s h e e t n u mb e r a s a p p l ic a b l e . I n d i c a t e t o t a l s h e e t s o n l y on sheet 1. 3 W T : E n te r u n it w e ig h t c a lc u la te d a t time o f d e s ig n if r e q u ir e d . 4 T I T L E : S e e p a r a g r a p h 2 . 1 o n p a g e 1 1 f o r s e le c tio n a n d a r r a n g e me n t o f drawing title. See paragraph 3.3.2 on page 32 for drawing title size. 5 S C A L E : E n te r s c a le . S e e p a r a g r a p h 3 . 4 o n p a g e 3 2 f o r s e le c tio n o f s c a le . 6 CODE: For drawings prepared by the Goddard Space Flight Center (GSFC) w ith a n o f f ic ia l G S F C d r a w in g n u mb e r , e n te r th e th r e e - d ig it G S F C c o d e id e n tif yin g th e g r o u p r e s p o n s ib le f o r th e d r a w in g . F o r d r a w in g s p r e p a r e d b y a c o n tr a c to r w ith a c o n tr a c to r d r a w in g n u mb e r a n d f o r ma t, th e c o n tr a c to r 's c o d e n u mb e r f r o m th e Co mme r c ia l a n d G o v e r n me n t E n t i t y ( C A G E ) P u b l i c a t i o n H 4 / H 8 ( f o r me r l y F e d e r a l S u p p ly Co d e fo r M a n u fa c tu r e r s ( F S C M ) H 4 a n d F e d e r a l S u p p ly Co d e s fo r No n - M a n u fa c tu r e r s ( F S C N M) H 8 ) s h a l l a p p e a r . 7 DATE: Enter date of initials. 8 D E S I G N E R : E n t e r d e s i g n e r ' s p r i n t e d n a me a n d i n i t i a l s . 9 D R A W N : E n te r d r a f ts ma n 's p r in te d n a me o r if d r a w n b y th e d e s ig n e r , th e d e s ig n e r ’ s p r in te d n a me ma y b e r e p e a te d . 1 0 C H E C K E D : E n t e r d e s i g n a n a l y s t ' s p r i n t e d n a me . T h i s n a me s h a l l b e a n in d e p e n d e n t n a me f r o m a ll o th e r n a me s o n th e d r a w in g . I t r e p r e s e n ts th a t th e d r a w in g h a s b e e n c h e c k e d a g a in s t th e p a r a me te r s o f th is d r a w in g ma n u a l a n d , w h e r e p o s s i b le , t o f o r m, f i t , f u n c t i o n , a n d f e a s i b i l i t y . T h e c h e c k e r mu s t h a v e a th o r o u g h u n d e r s ta n d in g o f th e me th o d s a n d p r a c tic e s o f g e o me tr ic tolerancing and be able to specify such practices in accordance with ANSI S ta n d a r d Y 1 4 . 5 M- 1 9 8 2 , D im e n s io n in g a n d T o le r a n c in g . 1 1 A P P R O V E D : E n te r th e p r in te d n a me s o f G S F C p e r s o n n e l a s s ig n e d to a p p r o v e th e d r a w in g . P r o j e c t r e q u ir e me n ts f o r d r a w in g n a me s s h a ll v a r y f r o m p r o g r a m t o p r o g r a m, b u t e a c h n a me s h a l l b e i d e n t i f i e d . F o r e x a mp l e , a f t e r e a c h a p p r o v a l n a me , n o te th e f o llo w in g : “ E N G ” f o r e n g in e e r , “ S T RE S S ” f o r s tr e s s e n g in e e r , “ Q A ” f o r q u a l i t y a s s u r a n c e e n g in e e r , “ M A T L ” f o r ma t e r i a l s e n g i n e e r , “ E L E C ” f o r e l e c t r ic a l e n g i n e e r , e t c . A l l n a me s i n l i n e i t e ms 8 t h r o u g h 1 1 mu s t b e l e g i b l e . T h e h a n d -w r i t t e n i n i t i a l s o n t h e p a p e r o r i g i n a l a r e t h e o f f i c i a l a p p r o v a l o f t h a t d o c u me n t . 1 2 U S E D O N : E n te r a c r o n ym n a me o f p r o g r a m a n d a c r o n ym n a me o f s u b s ys te m o r e x p e r ime n t w h e r e a p p lic a b le . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 8 ENGINEERING DRAWING STANDARDS MANUAL 1 3 N E X T A S S Y : E n t e r d r a w i n g n u mb e r o n w h i c h t h e p a r t i s n e x t u t i l i z e d , mo d if ie d , o r a s s e mb le d . I n th e c a s e o f to o lin g d r a w in g s , in th e N e x t A s s e mb ly b lo c k r e f e r to a g e n e r a l n o te th a t s ta te s “ T h is d r a w in g is u s e d to f a b r ic a te ( d r a w in g n u mb e r ) . ” I n s ta lla tio n d r a w in g s s h o u ld r e f le c t a to p c o n f ig u r a tio n d r a w in g n u mb e r a s th e n e x t a s s e mb ly. W h e n a c o n f ig u r a tio n d r a w in g is n o t b e in g p r o d u c e d , th e in s ta lla tio n d r a w in g s h a ll in d ic a te b y n o te “ T h e in s ta lla tio n f o r ms a p a r t o f th e c o n f ig u r a tio n f o r p r o g r a m ( p r o j e c t n a me ) . ” 1 4 E X A MI N A T I O N : T h e a p p r o p r i a t e “ N o n - D e s t r u c t i v e E x a mi n a t i o n ( N D E ) Re q u ir e d ” b lo c k s h a ll b e c h e c k e d o f f , an d th e a d d itio n o f th e a p p lic a b le c o d e o r “ s e e n o te X X ” s h a ll b e a d d e d w h e r e r e q u ir e d . Re f e r to T e s tin g a n d I n s p e c tio n N o te s o f th e g e n e r a l n o te s s e c tio n p a r a g r a p h 2 . 4 . 4 . 6 o n p a g e 2 0 . 1 5 F L I G H T H A R D W A R E a n d H A R D N E S S T E S T I N G : T h e F lig h t H a r d w a r e b lo c k mu s t b e c h e c k e d o f f w h e n th e p a r t is u s e d in a c tu a l f lig h t c o n f ig u r a tio n s . T h e a p p r o p r ia te H a r d n e s s T e s tin g b lo c k s h a ll b e c h e c k e d o f f r e g a r d l e s s o f w h e t h e r th e p a r t is f lig h t h a r d w a r e o r n o t. 1 6 O n CA D - p r o d u c e d d r a w in g s , a d d a 3 . 5 - in c h - lo n g b y 0 . 8 8 - in c h - h ig h b lo c k a s follows: THIS DRAWING WAS PRODUCED USING: SO F T W A R E: (a) VER SIO N : (b) F IL EN A M E: (c) Notes: ( a ) S o f t w a r e u s e d ( e x a mp l e : “ A U T O C A D ” ) ( b ) V e r s i o n o f s o f t w ar e ( e x a mp le : “ 1 0 c 7 ” ) ( c ) F ile n a me ( e x a mp le : “ G S F C1 2 3 4 ” ) 1 7 ME T R I C / H Y B R I D ME T R I C - I N C H : A d d “ X ” t o t yp e o f d r a w i n g b l o c k . A A A A 1 8 I T E M N O . : E n te r ite m n u mb e r s w h e n mo r e th a n o n e typ e o f ma te r ia l o r p a r t is r e q u ir e d , a n d c o o r d in a te d r a w in g c a llo u ts o n th e d r a w in g f ie ld . P a r ts ma d e o f th e s a me ma te r ia l, c o n d itio n , a n d s p e c if ic a tio n s h a ll b e a s s ig n e d o n ly o n e ite m n u mb e r , e v e n th o u g h th e p a r t ma y b e r e q u ir e d in v a r io u s s iz e s a n d t h i c k n e s s e s . T h e q u a n t i t y f o r s u c h i t e ms i n t h e L i s t o f M a t e r i a l ( L / M ) s h a l l b e s t a t e d a s “ A / R ” w i t h t h e s p e c i f i c s i z e s s pe lle d o u t in th e f ie ld o f th e d r a w in g . Re f e r to F ig u r e 3 o n p a g e 1 0 , F ig u r e 3 4 o n p a g e 8 0 , a n d S e c tio n 8 . 6 , F in d o r I te m N u mb e r S ys te m o f I d e n tif ic a tio n , o n p a g e 7 9 . D o n o t s k ip ite m n u mb e r s o n n e w d r a w in g s . 1 9 R E Q D : E n t e r q u a n t i t y o f p a r t s r e q u ir e d o n ly f o r t h e p a r t s o f a n i n s e p a r a b le a s s e mb ly o r a s s e mb ly d r a w in g . 20 P A R T N O . : E n te r id e n tif yin g p a r t n u mb e r s w h e n r e q u ir e d ( G o v e r n me n t, c o n tr a c to r , v e n d o r , o r o th e r ) . O n n e w d r a w in g s , g r o u p lik e ite ms to g e th e r . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 9 21 D E S C R I P T I O N : E n t e r ma t e r i a l d e s c r i p t i o n ( p l a t e , e t c . ) o r a p a r t n a me t i t l e i f it is a n o th e r d r a w in g . E n c lo s e r e f e r e n c e i n f o r ma t i o n s u c h a s f a s t e n e r s i z e s i n brackets. 22 M A T E R I A L : E n t e r t h e ma t e r i a l f r o m w h i c h t h e p a r t i s f a b r i c a t e d . E x a mp le s : “AL ALY”; “CRES”; “BE CU.” 2 3 M A T E R I A L S P E C . : E n t e r t h e a p p l i c a b l e ma t e r i a l s p e c i f i c a t i o n s , n u mb e r , a n d f in a l c o n d itio n . E x a mp le s : “ Q Q - A - 2 5 0 /1 1 6 0 6 1 - T 6 ” f o r A L A L Y p la te ; “ASTM A582 303 COND A” for CRES bar. T h e in f o r ma tio n r e q u ir e d in th e r e v is io n b lo c k s h a ll b e a s s p e c if ie d o r r e f e r e n c e d b y i t e ms 2 4 t h r o u g h 2 8 , b el o w , a n d i n a c c o r d a n c e w i t h “ D r a w i n g Re v is io n s , ” p a r a g r a p h 7 , p a g e 6 8 . 2 4 R E V I S I O N S - S Y M: E n te r r e v is io n s ymb o l. 25 REVISIONS - ZONE: Enter zone (where used). 2 6 R E V I S I O N S - D E S C R I P T I O N : E n te r d e s c r ip tio n o f th e r e v is io n ( r e f e r to S e c tio n 7 , “ D r a w in g Re v is io n s ” ) . 2 7 R E V I S I O N S - D A T E : E n te r d a te a p p r o v e d b y a u th o r iz e d s ig n e r ( s ) in b lo c k . 2 8 R E V I S I O N S - A P P R O V A L : E n te r s ig n a tu r e o f G S F C p e r s o n a s s ig n e d to a p p r o v e . I f c h a n g e w a s b y a p p r o v e d E O , d r a w in g o n ly n e e d s a p p r o v a l o f th e d r a f ts ma n o r p e r s o n in c o r p o r a tin g th e c h a n g e , a n d th e c h e c k e r . I f c h a n g e s ma d e a r e n o t c o v e r e d b y a n E O , th e n a p p r o v a l mu s t in c lu d e th e e n g in e e r . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 10 ENGINEERING DRAWING STANDARDS MANUAL DETAIL DRAWING WIRE BE CU QQ-C-530, COND 1/2 HT ITEM REQD PART NO. DESCRIPTION MATERIAL MATERIAL SPEC & NO. NO. DETAIL SHOWN & OPPOSITE DRAWING -2 BAR OPPOSITE AL ALY QQ-A-225/8 6061-T6 -1 BAR SHOWN AL ALY QQ-A-225/8 6061-T6 ITEM REQD PART NO. DESCRIPTION MATERIAL MATERIAL SPEC & NO. NO. INSEPARABLE ASSEMBLY DRAWING 2 2 MS21209C0415 INSERT (4-40 UNC x .168 LG) SEE NOTE 1 1 1 PLATE AL ALY QQ-A-250/11 6061-T6 ITEM REQD PART NO. DESCRIPTION MATERIAL MATERIAL SPEC & NO. NO. INSEPARABLE ASSEMBLY DRAWING 2 3 MS21209C0415 INSERT (4-40 UNC x .168 LG) SEE NOTE 1 1 A/R PLATE AL ALY QQ-A-250/11 6061-T6 GD1000001 PLATE ASSY ITEM REQD PART NO. DESCRIPTION MATERIAL MATERIAL SPEC & NO. NO. ASSEMBLY DRAWING 4 3 3 MS51957-12 SCREW (4-40 UNC 2A x .187 LENGTH) CRES 3 2 2 GD1003451 BLOCK 2 1 GC1003467-2 PLATE 1 1 GC1003467-1 PLATE GE1002500-2 PADDLE ASSEMBLY OPPOSITE GE1002500-1 PADDLE ASSEMBLY SHOWN ITEM REQD REQD PART NO. DESCRIPTION MATERIAL MATERIAL SPEC & NO. NO. Notes: (a) Paint, adhesives, and protective coatings shall appear in note form. (b) Hardware shall appear in List of Material with required quantity. (c) “A/R” shall be used in REQD column when same material (same material specification and condition) appears more than once in different sizes in the field of the drawing. (d) “A/R” may be used to indicate large quantities of rivets. (e) A material specification shall only appear once in the List of Material unless material conditions vary or a Shown and Opposite part is required. Sheet and plate shall not be listed as separate items. Figure 3: Examples of “List of Material” 1.5. Drawing Format T h e d r a w in g f o r ma t f o r th e d r a w in g s iz e s lis te d o n p a g e 3 , in c lu d in g z o n in g , d r a w in g n u mb e r s , s e c u r ity c la s s if ic a tio n , e tc . , is s h o w n in F ig u r e 1 , p a g e 4 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 11 2. NOMENCLATURE 2.1. Drawing Title G e n e r a l i n f o r ma t i o n f o r t h e s e l e c t i o n o r d e v e l o p me n t o f a d r a w i n g t i t l e i s a s follows: a. The title should be as brief as possible but should contain sufficient in f o r ma tio n to c a te g o r iz e th e p a r t p r o p e r ly a n d to d is tin g u is h it f r o m o th e r s i mi l a r p a r t s . b. The drawing title shall consist of the following: 1 . I d e n tif yin g n o u n o r n o u n p h r a s e . 2 . T h e mo s t s ig n if ic a n t mo d if ie r o r mo d if yin g p h r a s e . 3 . T h e n e x t mo s t s ig n if ic a n t mo d if ie r o r mo d if yin g p h r a s e . T h e n o u n o r n o u n p h r a s e e s ta b lis h e s a b a s ic c o n c e p t o f a n ite m. T h e mo d i f i e r s s e r v e t o n a r r o w t h e a r e a o f c o n c e p t e s ta b lis h e d b y th e b a s ic n a me . A mo d if ie r is s e p a r a te d f r o m th e n o u n o r n o u n p h r a s e b y a c o mma a n d f r o m a n y p r e c e d i n g mo d i f i e r b y a c o mma . T h e t y p e d e s i g n a t o r a n d / o r a n y a d d itio n a l mo d if ie r s r e q u ir e d to f u r th e r id e n tif y a n ite m a r e s e p a r a te d f r o m the first part of the title by a dash. Where applicable, the word “ASSEMBLY” s h a ll b e u s e d a s th e la s t w o r d o f th e n o u n p h r a s e . EXAMPLES: “ B e a m, H o i s t i n g , G u i d e d M i s s i l e ” “ C o v e r , P r o t e c t i v e , R o c k e t M o t o r—Fo r w a r d S e c t i o n ” “ Ca b in e t, E le c tr ic a l E q u ip me n t—CY - 1 4 7 ” “ T r a n s p o r t a t i o n—Do l l y A s s e mb l y , E a r t h S a t e l l i t e ” c. T h e n o u n , o r n o u n p h r a s e , is n e v e r a b b r e v ia te d . A b b r e v ia tio n s a r e u s e d in th e mo d i f i e r s o n l y w h e n s p a c e i s l i mi t e d . W h e n u s e d , a b b r e v i a t i o n s s h a l l c o n f o r m to A b b r e v ia tio n s , p a r a g r a p h 2 . 2 o n p a g e 1 2 . d . W h e n o n e d r a w in g s u p e r s e d e s a n o th e r , th e n e w d r a w in g , w h e n p r a c tic a l, h a s t h e s a me t i t l e . e . P a r e n th e s e s a r e n o t u s e d t o e n c l o s e a n y p o r t i o n o f t h e d r a w i n g t i t l e . f. P r o g r a m n a me s ( o r a b b r e v ia tio n s ) s h o u ld b e a d d e d to th e “ U s e d O n ” b lo c k a n d n o t t h e T i t l e b lo c k ; e x c e p t i o n s a r e o n t h e f i n a l o r t o p a s s e mb l y d r a w i n g . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 12 ENGINEERING DRAWING STANDARDS MANUAL 2.2. Abbreviations T h e p u r p o s e o f th is s e c tio n is to p r o v id e a lis t o f a u th o r iz e d a b b r e v ia tio n s f o r u s e o n d r a w in g s a n d a s s o c ia te d d o c u me n ts . W h e n u s e d , a b b r e v ia tio n s a n d a c r o n yms shall be in accordance with GSFC STD-256-WE-1 and MIL-STD-12 (in that order of precedence). a. Uppercase Gothic letters shall be used. b . A b b r e v ia tio n s f o r w o r d c o mb in a tio n s ( e . g . , MMC—Ma x imu m Ma te r ia l Co n d itio n ) s h a ll b e u s e d a s s u c h a n d s h a ll n o t b e s e p a r a te d f o r u s e s in g ly. S i n g l e a b b r e v i a t i o n s ma y b e c o mb i n e d w h e n n e c e s s a r y . c. T h e s a me a b b r e v ia tio n s h a ll b e u s e d f o r a l l t e n s e s , t h e p o s s e s s i v e c a s e a n d t h e s in g u la r a n d p lu r a l f o r ms o f a g iv e n w o r d . d . A b b r e v i a t i o n s s h o u l d b e u s e d o n l y t o s a v e s p a c e o r t i me , b u t n e v e r a t t h e e x p e n s e o f c la r ity. e . P e r i o d s s h a l l b e u s e d w i t h a b b r e v i a t i o n s t h a t s p e l l e n t i r e w o r d s t o p r o v id e c la r ity a n d to a v o id mis in te r p r e ta tio n . T h e f o l l o w i n g a b b r e v i a t i o n s a r e a c c e p t a b le t o u s e a n d a r e “ i n d u s t r y - r e l a t e d ” a s s o c ia tio n s n o t f o u n d in G S F C S T D - 2 5 6 - W E - 1 o r MI L - S T D - 1 2 . A F BMA A n ti- F r ic tio n Be a r in g Ma n u f a c tu r e r s A s s o c ia tio n , I n c . 1 1 0 1 Co n n e c tic u t A v e n u e , N W S u ite 7 0 0 W a s h in g to n , D C 2 0 0 3 6 AGMA A me r i c a n G e a r M a n u f a c t u r e r s A s s o c i a t i o n , I n c . 1 5 0 0 K in g S tr e e t S u ite 2 0 1 A r lin g to n , V A 2 2 3 1 4 ANSI A me r i c a n N a t i o n a l S t a n d a r d I n s t i t u t e 1 4 3 0 Br o a d w a y New York, NY 10018 ASME A me r i c a n S o c i e t y o f M e c h a n i c a l E n g i n e e r s 3 4 5 E . 4 7 th S tr e e t New York, NY 10017 ASTM A me r i c a n S o c i e t y f o r T e s tin g a n d Ma te r ia ls 1916 Race Street P h ila d e lp h ia , P A 1 9 1 0 3 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 13 AWS A me r i c a n W e l d i n g S o c i e t y , I n c . 5 5 0 N . W . L e d e u n e Ro a d P . O . Bo x 3 5 1 0 4 0 Mia mi, F L 3 3 1 3 5 IEEE I n s t i t u t e o f E l e c t r i c a l an d E l e c t r o n i c E n g i n e e r s , I n c . 445 Hose Lane P . O . Bo x 1 3 3 1 P is c a ta w a y, N J 0 8 8 5 5 - 1 3 3 1 ISO I n te r n a tio n a l O r g a n iz a tio n f o r S ta n d a r d iz a tio n / ( O r g a n i s a t i o n I n t e r n a t i o n a l e d e N o r ma l i s a t i o n ) 1 , r u e d e V a r e mb é 1211 Geneve 20 S w i t z e r l a n d /S u i s s e NEMA National Electrical Manufacturers Association 2 1 0 1 L S tr e e t, N W W a s h in g to n , D C 2 0 0 3 7 NSA N a tio n a l S ta n d a r d s A s s o c ia tio n , I n c . 1 2 0 0 Q u in c e O r c h a r d Blv d G a ith e r s b u r g , MD 2 0 8 7 8 NAS A e r o s p a c e I n d u s t r i e s A s s o c i a t i o n o f A me r i c a , I n c . 1 2 5 0 I S tr e e t, N W W a s h in g to n , D C 2 0 0 0 5 SAE S o c i e t y o f A u t o mo t i v e E n g i n e e r s , I n c . 4 0 0 Co mmo n w e a lth D r iv e W a r r e n d a le , P A 1 5 0 9 6 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 14 ENGINEERING DRAWING STANDARDS MANUAL 2.3. List of Material 2.3.1. Requirements on the Body of the Drawing E a c h p a r t l i s t e d i n t h e L i s t o f M a t e r i a l ( P a r t s L i s t ) mu s t b e id e n tif ie d a t le a s t o n c e b y a n I te m ( F in d ) N u mb e r o n th e b o d y o f th e d r a w in g ( e x c e p t s in g le ite m d r a w in g s a n d s h o w n a n d o p p o s ite ite m d r a w in g s ) . Note: P a r t s s h a l l b e b r a c k e t e d , i n d i c at i n g r e f e r e n c e , w h e n t h e y a r e id e n tif ie d b y n u mb e r a n d a r e n o t n o te d in th e L is t o f Ma te r ia l. S u c h p a r ts a r e s h o w n in p h a n to m. Re p e a te d ite m n u mb e r s s h a ll b e indicated as reference either within brackets or by the word “REF.” 2.3.2. Requirements in the List of Material a . T h e L i s t o f M a t e r i a l i s a l i s t o f a l l p a r t s a n d ma t e r i a l s c a l l e d o u t o n th e d r a w in g . S e e F ig u r e 3 o n p a g e 1 0 . b . T h e q u a n t i t y o f p a r t s n o te d i n t h e L i s t o f M a t e r i a l i s t h e n u mb e r r e q u ir e d t o c o mp l e t e t h e n o te d a s s e mb l y . c. W h e n a n e w d r a w in g is ma d e , a ll p a r ts in th e L is t o f Ma te r ia l s h o u ld b e g r o u p e d a s to typ e , s u c h a s d a s h n u mb e r ( f o r s h o w n a n d o p p o s ite a s s e mb lie s ) , G S F C d r a w in g s ( f o r d e ta ile d p a r ts ) , MS p a r ts , N A S p a r ts , e tc . , a n d lis te d in th is s e q u e n c e . d . Q u a n t i t i e s o f B u l k I t e ms a n d p l a c e me n t : r e f e r t o n o t e s ( a ) th r o u g h ( e ) o n F ig u r e 3 o n p a g e 1 0 . e. P r e f e r r e d p a r ts lis ts f o r p a r ts , ma te r ia ls , a n d p r o c e s s e s c a n b e f o u n d in a n u n o f f ic ia l p u b lic a tio n a v a ila b le f o r v ie w in g in th e Mechanical Engineering Branch. The “Design Selection Guide” c o n ta in s a w id e r a n g e o f h a r d w a r e , ma te r ia ls , d e s ig n s ta n d a r d s , a n d p r o c e s s e s . I t s h a l l b e n o te d t h a t n o t a l l o f t h e i t e ms i n t h i s reference guide are rated for space flight use. Note: A ll f a s te n e r s u s e d in f lig h t h a r d w a r e a n d c r itic a l n u ts a n d b o lts u s e d o n g r o u n d s u p p o r t e q u ip me n t, in c lu d in g a ll f lig h t/G S E i n t e r f a c e s , mu s t me e t t h e s p e c i f i c a t i o n G S F C F a s t e n e r I n t e g r i t y R e q u ir e m e n ts, G S F C S - 3 1 3 - 1 0 0 , Ma te r ia ls Br a n c h , O f f ic e o f F lig h t A s s u r a n c e . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 15 2.4. Notes on Drawings I n f o r ma tio n o th e r th a n p ic to r ia l v ie w s a n d d ime n s io n s n e c e s s a r y f o r c o mp le tin g a d r a w i n g i s c l a s s i f i e d a s “ n o t e s . ” T h e tw o typ e s o f n o te f o r ms a r e G e n e r a l N o te s a n d L o c a l C h a r a c t e r N o t e s . N o t es o n a d r a w i n g t a k e p r e c e d e n c e o v e r s p e c if ic a tio n r e q u ir e me n ts ; h e n c e , n o te s c o n f lic tin g w ith r e f e r e n c e d specifications shall not be placed on a drawing unless they are necessary for d e v ia tio n s f r o m c e r ta in p r o v is io n s o f th e s p e c if ic a tio n . 2.4.1. Security Classification The security classification “Top Secret,” “Secret,” or “ Co n f id e n tia l” s h a ll b e lo c a te d o n th e d r a w in g a s n o te d in F ig u r e 1 on page 4. E a c h s h e e t o f a mu l t i s h e e t d r a w i n g s h a l l b e i n d iv id u a l l y c l a s s i f i e d a s t o i t s c o n t e n t s . T h e s e c u r i t y s t a mp o n e a c h s h e e t s h a l l b e t h a t o f th e h ig h e s t c la s s if ic a tio n f o r a n y ite m s h o w n o n th a t in d iv id u a l s h e e t, n o t th e g e n e r a l o v e r a ll c la s s if ic a tio n o f th e e n tir e s e t o f d r a w in g s o r th e e n d ite m. O n r o ll- s iz e d r a w in g s , th e s e c u r ity c la s s if ic a tio n s h a ll b e s h o w n o n th e r e v e r s e s id e a t b o th e n d s o f th e d r a w in g s n e x t to th e d r a w in g n u mb e r to e n a b le th e c la s s if ic a tio n to be seen without unrolling the drawing. A w a r n i n g n o t e s h a l l b e i n c l u d ed a d j a c e n t t o t h e s e c u r i t y classification located above the Title block and shall read as follows: THIS MATERIAL CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE LAWS, TITLE 18 U.S.C., SECTIONS 793 AND 794. THE TRANSMISSION OR REVELATION OF WHICH IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW. 2.4.2. Note Location N o t e s o f g e n e r a l c h a r a c t e r t h a t d o n o t r e q u ir e le a d e r s to in d ic a te w h e r e th e y a p p ly, a n d f o r w h ic h p r o v is io n h a s n o t b e e n ma d e in th e s u p p le me n ta r y b lo c k s o f th e d r a w in g f o r ma t, s h a ll b e lo c a te d in th e f o llo w in g o r d e r o f p r e f e r e n c e : a. Adjacent to the upper left border and to the left of all views. b . I mme d ia te ly to th e le f t o f th e r e v is io n b lo c k . c. A d j a c e n t t o t h e l o w e r l e f t b o rd e r o r b e l o w t h e r e v i s i o n b l o c k , space being left for extending the revision block downward. This location should be avoided whenever practical because the space required for revisions cannot be anticipated. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 16 ENGINEERING DRAWING STANDARDS MANUAL 2.4.3. Numbering of Notes G e n e r a l n o te s a r e n u mb e r e d c o n s e c u tiv e ly d o w n w a r d . N o te n u mb e r s ma y b e id e n tif ie d o n th e f ie ld o f th e d r a w in g b y p la c in g th e n o te n u mb e r in a p e n n a n t- s h a p e d f la g a t th e g e n e r a l n o te lo c a tio n a n d in th e f ie ld o f th e d r a w in g , o r in th e L is t o f Ma te r ia l ( M a t e r i a l S p e c i f i c a t i o n c o l u mn ) , w h i c h e v e r l o c a t i o n i s mo r e a p p r o p r ia te . 2.4.4. Note Examples T h e f o l l o w i n g n o t e s a r e l i s t e d a s r e p r e s e n t a t i v e e x a mp l e s a n d s h o u ld b e u s e d o n E n g in e e r in g D r a w in g s w h e n a p p lic a b le . S i g n if i c a n t i n f o r ma t i o n i s t o b e i n s e r t e d w h e r e b l a n k ( s ) a r e in d ic a te d a n d , f o r mo s t c a s e s , th e n o ta tio n s in p a r e n th e s e s a r e f o r in f o r ma tio n o n ly. ( W h e n n o t a p p lic a b le , d o n o t u s e in n o te ) . B e f o r e u s i n g t h e r e f e r e n c e d s p e c i f ic a t i o n s , c h e c k t h e D e p a r t me n t o f Defense Index of Specifications and Standards Publications to ensure that the specification has not been cancelled or superseded. U s e e i t h e r o f t h e f o l l o w i n g s t a t e me n t s a s ma i n h e a d i n g f o r n o t e s : “Except as noted” or “Unless otherwise specified.” 2.4.4.1. Dimension Notes ALL DIMENSIONS APPLY AFTER SURFACE TREATMENT. DIMENSIONAL LIMITS AND SURFACE ROUGHNESS DESIGNATIONS APPLY (state “BEFORE” or “AFTER”) PLATING. (For other coatings, substitute the appropriate expression for “plating.”) DIMENSIONS TO APPLY AFTER STRESS RELIEF. DIMENSIONING AND TOLERANCING TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1982. (Note need be added only when drawings are not in compliance with GSFC X-673-64-1F.) GEAR TOLERANCES TO BE IN ACCORDANCE WITH AGMA STANDARD QUALITY (insert number). DIMENSIONS ARE IN MILLIMETERS. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 17 TOOLING-CONTROLLED DIMENSION PER TEMPLATE (or “TOOL”) NUMBER GX XXXXXXX. THE ACTUAL TOLERANCES ON THE FEATURE'S LOCATIONS ARE CONTROLLED BY THE TEMPLATE. (Note to be flagged to tooling- affected dimensions and tolerances, which are then enclosed in parentheses to indicate a reference; template drawings shall carry a note stating the drawing number of the part they are used to fabricate.) TORQUE LIMITS FOR THREADED FASTENERS SHALL BE IN ACCORDANCE WITH PROJECT APPROVED SPECIFICATION NUMBER (OR ENGINEERING ANALYSIS). 2.4.4.2. Heat Treating Notes Note for beryllium copper: HEAT TREAT IN ACCORDANCE WITH MIL-H-7199 TO ( Br i n e l l ) . Note for steel: HEAT TREAT IN ACCORDANCE WITH MIL-H-6875 TO XXX. (XXX = “Rockwell,” “Brinell,” or Vickers”). N o te s f o r a lu min u m: HEAT TREAT IN ACCORDANCE WITH MIL-H-6088 TO ( Br i n e l l ) . H EAT T R EAT T O CONDITION AFTER (insert “BRAZING” or “WELDING”) IN ACCORDANCE WITH MIL-H-6088. AFTER WELDING, SOLUTION HEAT TREAT AND ARTIFICIALLY AGE TO T-6 CONDITION PER MIL-H-6088. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 18 ENGINEERING DRAWING STANDARDS MANUAL 2.4.4.3. Joining Method Notes (welding, brazing, etc.) T h e f o llo w in g s p e c if ic a tio n s u p e r s e d e s MI L - W - 8 6 0 4 f o r A lu m. ; MI L - W - 8 6 1 1 A f o r S te e l, CRE S , a n d H T RE S A L Y ; a n d MI L - W - 1 8 3 2 6 f o r Ma g n e s iu m: FUSION WELD IN ACCORDANCE WITH MIL-STD-2219, PROCESS CLASS U SIN G F IL L ER M ET AL AND APPROPRIATE FLUX. (Joint dimension and design should be specified on the drawing.) ELECTRON BEAM WELDING IN ACCORDANCE WITH MIL-W-46132. SOLDER IN ACCORDANCE WITH NHB 5300.4(3A–1), USING SOLDER MATERIAL, QQ-S-571, TYPE . SOLDER IN ACCORDANCE WITH DOD-STD-1866 (GENERAL SOLDERING PROCESS FOR ALL TYPES AND MATERIALS FOR NONELECTRICAL APPLICATIONS). N o te f o r a lu min u m: DIP BRAZE IN ACCORDANCE WITH MIL-STD-645; H EAT T R EAT T O CONDITION PER MIL-H-6088. SILVER SOLDER IN ACCORDANCE WITH MIL-B-7883, TYPE G R AD E USING SOLDER MATERIAL QQ-B-654, CLASS . RIVET IN ACCORDANCE WITH MIL-STD-403. 2.4.4.4. Plating and Coating Notes P l a t i n g n o t e s a r e g e n er a l l y n o t f o r s p a c e f l i g h t h a r d w a r e u s e i n r e s t r i c t e d a r e a s s u c h a s o p t i c s , e l e c t r o n i c s , e t c . , d u e to f la k in g . CADMIUM PLATE IN ACCORDANCE WITH QQ-P-416, TYPE CLASS . H A R D C H R O M E P L A T E ( s i z e ) —( s i z e ) T H I C K P E R QQ-C-320, TYPE , CLASS ; DIMENSIONS SHOWN APPLY AFTER PLATING. NICKEL PLATE IN ACCORDANCE WITH MIL-STD-171, F I N I S H ( p a r a . n u m b e r ) , TYPE . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 19 SILVER PLATE IN ACCORDANCE WITH QQ-S-365, TYPE , G R AD E . PAINT IN ACCORDANCE WITH MIL-STD-171, TABLE ; F IN ISH N O . COLOR IN ACCORDANCE WITH FED-STD-595 (color number). N o te s f o r a lu min u m: ANODIZE IN ACCORDANCE WITH MIL-A-8625, TYPE , CLASS COLOR (name of color only). IRIDITE IN ACCORDANCE WITH MIL-C-5541, CLASS . Note for CRES: PASSIVATE PER QQ-P-35, TYPE . F IN ISH OF MIL-STD-171. Use paragraph that applies to material being used. Note for iron and steel: APPLY PROTECTIVE PHOSPHATE COATING IN ACCORDANCE WITH MIL-C-12968, TYPE . (Add “CLASS ”if applicable.) N o t e f o r t i t a n iu m: SURFACE FINISH TO BE IN ACCORDANCE WITH AMS 2488, TYPE . 2.4.4.5. Surface Preparation Notes SURFACE TO BE CLEANED AND POLISHED FOR VACUUM USE. DO NOT USE ROUGE COMPOUNDS OR CHEMICALS DURING BUFFING OR POLISHING ON ITEMS REQUIRING TANK-TYPE LEAK TESTS. EXTERNAL SURFACE TO BE BUFFED TO . BEFORE ELECTROPOLISHING, MASK ALL SURFACES MARKED . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 20 ENGINEERING DRAWING STANDARDS MANUAL VAPOR DEGREASING PER ASTM D4126, GENERAL SOLVENT GRADE 1,1,1 TRICHLOROETHANE. 2.4.4.6. Testing and Inspection Notes THIS PART SHALL HAVE A LEAK RATE OF NOT MORE THAN (1 x 10-7 CC/SEC OF HELIUM) WHEN MEASURED BY A CALIBRATED MASS SPECTROMETER HAVING A SENSITIVITY OF (1 x 10-9 CC/SEC WITH GREATER THAN 90% HELIUM) AT A DIFFERENTIAL OF (ONE) ATMOSPHERE OR EQUIVALENT TEST. RADIOGRAPHIC INSPECTION OF ALL WELDS IN ACCORDANCE WITH MIL-STD-00453. ULTRASONIC INSPECTION PER MIL-STD-2154, TYPE (Insert “I” or “II”), CLASS . (I = Immersion Method, II = Contact Method.) F o r G e n e r a l F r a c tu r e Co n tr o l P la n fo r P a y lo a d s U s in g th e S p a c e T r a n s p o r ta tio n S y s te m ( S T S ) , r e f e r to G S F C 7 3 1 - 0 0 0 5 - 8 3 . O n e o f th e f o llo w in g n o te s s h o u ld b e u s e d f o r p a r ts r e q u ir in g e tc h in g a n d /o r liq u id p e n e tr a n t in s p e c tio n : FRACTURE CRITICAL PART - ETCH AND PENETRANT INSPECT PER GSFC S-313-009, CODE XXXXX. (Usually used for machined parts.) FRACTURE CRITICAL PART - DO NOT ETCH PART. PENETRANT INSPECT PER GSFC S-313-009, CODE XXXXX. (Usually used for rolled parts.) I f a r e a s o f a p a r t a r e t o b e e t c he d a n d i n s p e c t e d p r i o r t o f i n i s h ma c h in in g , a s e p a r a te d r a w in g n o te s h o u ld c a ll o u t th is r e q u ir e me n t t o a v o i d c o s t l y mis t a k e s . 2.4.4.7. Threaded Inserts — Cleaning and Installation Notes N o t e f o r a l u mi n u m a n d ma g n e t i c s u r f a c e s : CLEAN THREADED INSERTS WITH TRICHLOROETHANE AND BAKE OUT AT 100 DEGREES CELSIUS FOR 3 TO 4 HOURS PRIOR TO INSTALLATION. APPLY DRY FILM LUBRICANT GOVT. DESIGNATION M-6003, TYPE (insert “I” or “II”) PER MIL-L-46010 QPL (LIST). (Type I cure temp. = 150 degrees C.) (Type II cure temp. = 240 degrees C.) X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 21 INSTALL THREADED INSERTS PER XXX. (XXX = “MS33537” for coil type, “MS51835” for Keen type, or “ M I L -I -4 5 9 3 2 / 1 ” f o r t h i n w a l l t y p e . ) INSTALL CLINCH NUTS PER MIL-N-45938/1. AFTER THE BONDING EPOXY IS CURED PER NOTE , AL L IT EM (insert number) THREADED INSERTS SHALL BE CAPABLE OF WITHSTANDING A CORRESPONDING TORQUE LOAD, AS LISTED IN TORQUE TABLE, WITHOUT BECOMING LOOSE. ALL THREADS ON THREADED FASTENERS SHALL BE FREE OF ADHESIVE AND FOREIGN MATERIAL. TORQUE TABLE THREAD SIZE TORQUE, IN-LBS 6-32 UNC x.x ... ... ... ... TAP ALL HOLES PRIOR TO COATING; INSTALL THREADED INSERT AFTER COATING. 2.4.4.8. Miscellaneous Notes PLACE IN BAG AFTER FINAL ELECTROPOLISHING. BAG SHALL CONFORM TO MIL-P-116, METHOD (see spec.). ALTERED PART SOURCE INFORMATION: PAR T N O .: VEN D O R : ADDRESS: MAINTAIN AS MATCHED SET AFTER MACHINING. Note for NON-flight parts ONLY: STEEL STAMP, ETCH, OR ENGRAVE (size) HIGH +.005 CHARACTER AS SHOWN, X .010 -.000 DEEP. THIS DRAWING TO BE INTERPRETED IN ACCORDANCE WITH GSFC X-673-64-1F. RUBBER STAMP (size) HIGH CHARACTER AS SH O W N , U SIN G (insert “INK” or “PAINT”) IN ACCORDANCE WITH (specification *). (* Include manufacturer's part number and address.) X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 22 ENGINEERING DRAWING STANDARDS MANUAL BAG PART PER MIL-P-116, METHOD , AND TAG WITH PART NUMBER.” ALTERED SURFACES TO HAVE . (Refer to paragraph 10.4.1, page 93, for symbol notation.) FINISH ALL OVER. (Refer to paragraph 10.4.1, page 93, for symbol notation.) SURFACE ROUGHNESS AS XXX: MACHINED SURFACES . (where XXX is “ROLLED,” “EXTRUDED,” or “DRAWN”). (Refer to paragraph 10.4.1, page 93, for symbol notation.) IN SID E C O R N ER S R MAXIMUM. UNIT TO BE STRAIGHTENED AND STRESS- RELIEVED AFTER WELDING. WELDED OR BRAZED FILLETS TO BE CONFINED TO INSIDE SURFACE. TWINE SHALL CONFORM TO THE REQUIREMENTS OF MIL-T-713, TYPE , CLASS . A MANUFACTURER'S CERTIFICATION OF MATERIAL SPECIFICATION COMPLIANCE MUST BE SUPPLIED W IT H PAR T (insert number). MAGNETIC SPECIFICATION--PERMEABILITY OF LESS THAN (specify units) . COMPONENTS MUST BE PACKAGED AND MARKED IN ACCORDANCE WITH APPLICABLE INTERSTATE COMMERCE COMMISSION (ICC) REGULATION 49-CFR71-78; SHIPMENT SHALL BE MADE DIRECTLY TO THE USING AGENCY. EXPLOSIVE (or other applicable wording) COMPONENTS ARE HAZARDOUS AND MUST BE HANDLED IN ACCORDANCE WITH APPLICABLE SAFETY REGULATION 49-CFR71-78. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 23 2.4.4.9. Informational Notes I n f o r ma tio n a l n o te s , s u c h a s th e f o llo w in g g o v e r n me n t r ig h ts to ma n u f a c t u r e n o t e , s h a l l a p p e a r a d j a c e n t t o t h e r i g h t b o r d e r a n d T i t l e b lo c k o f t h e d r a w i n g : THE XXXX COMPANY, CHICAGO, IL., PART NUMBER XXXX CORRESPONDS TO THE ITEM DEPICTED ON THIS DRAWING, WHICH IS FURNISHED FOR UNRESTRICTED USE IN CONNECTION WITH ANY U.S. GOVERNMENT MANUFACTURE OR PROCUREMENT. SUCH USE IS AUTHORIZED BY THE XXX COMPANY LETTER NO. XXX SIGNED AND DATED . NO OTHER USE IS AUTHORIZED. 2.4.5. Local Character Notes N o t e s o f l o c a l c h a r a c t e r , s u c h a s d r i l l n o te s , t h r e a d n o te s , e t c . , t h a t r e q u i r e l e a d e r s t o i n d i c a t e t h e f e a tu r e s t o w h i c h t h e y a p p ly , s h a l l b e l o c a t e d i n t h e f i e l d o f t h e d ra w i n g i n p o s i t i o n s a d j a c e n t t o s u c h f e a t u r e s . E a c h n o t e s h a l l s t a t e t h e n u mb e r o f f e a tu r e s to w h ic h it applies unless a leader is drawn to each feature. 2.4.6. General Dimensional Tolerance Notes T h e g e n e r a l to le r a n c e s e n te r e d in th e s u p p le me n ta r y p o r tio n o f th e T i t l e b lo c k s h a l l c o n tr o l a l l d ime n s i o n s a p p l i e d t o t h e d r a w i n g , e x c e p t t h o s e s p e c i f i c a l l y l a b e l e d “ M a x , ” “ M i n , ” “ R e f , ” “ D a t u m, ” o r “ Ba s ic , ” o r d ime n s io n s h a v in g to le r a n c e s a p p lie d d ir e c tly th e r e to , o r d ime n s io n s c o n tr o lle d b y n o te s o r d o c u me n ts in v o k e d o n th e d r a w in g . G e n e r a l to le r a n c e s ma y b e c h a n g e d to th e p r e v a le n t to le r a n c e s th a t a r e r e q u ir e d b y th e d r a w in g typ e . T h is is d o n e b y s tr ik in g th r o u g h th e to le r a n c e a n d in s e r tin g th e n e w to le r a n c e b e n e a th th e o ld . I n th e c a s e w h e r e me tr ic to le r a n c in g is r e q u ir e d , s e e S e c tio n 1 0 . 2 , s u b p a r a g r a p h i, f o r g e n e r a l to le r a n c e s . 2.5. Specification Callouts N o r ma lly, o n ly th e b a s ic d o c u me n t n u mb e r o f a s p e c if ic a tio n s h o u ld b e s h o w n o n t h e d r a w i n g , i n w h i c h c a s e , t h e l a t e s t i s s u e i n e f f e c t a t t h e t i me o f i n v i t a t i o n t o b id s h a ll b e imp o s e d in a ll p r o c u r e me n t a c tio n s . Ch a n g e s to th e s p e c if ic a tio n o c c u r r in g s u b s e q u e n t to th e time o f in v ita tio n to b id s h a ll n o t b e imp o s e d in c u r r e n t p r o c u r e me n t a c tio n s u n le s s th e d r a w in g is r e v is e d to s h o w th e n e w is s u e b y b a s ic d o c u me n t n u mb e r , r e v is io n s , a me n d me n t, a n d /o r d a te a n d c u r r e n t p r o - c u r e me n t a c tio n s a me n d e d to s p e c if y th e n e w d r a w in g r e v is io n o r E n g in e e r in g Order (EO). X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 24 ENGINEERING DRAWING STANDARDS MANUAL I f th e b a s ic d o c u me n t n u mb e r , r e v is io n , a me n d me n t, a n d /o r d a te o f a s p e c if ic a tio n a r e s h o w n o n a d r a w in g , o n ly th a t p a r tic u la r is s u e s h a ll b e imp o s e d in a ll p r o c u r e me n t a c tio n s . Ch a n g e s to th e s p e c if ic a tio n o c c u r r in g s u b s e q u e n t to th e time o f in v ita tio n to b id s h a ll n o t b e imp o s e d in e ith e r c u r r e n t o r f u tu r e p r o c u r e me n t a c tio n s u n le s s th e d r a w in g is r e v is e d to s h o w th e n e w is s u e b y b a s ic d o c u me n t n u mb e r , r e v is io n , a me n d me n t, a n d /o r d a te a n d c u r r e n t p r o c u r e me n t a c tio n s a me n d e d to s p e c if y th e n e w d r a w in g r e v is io n o r E O . Re g a r d le s s o f w h e th e r a s p e c if ic a tio n is s h o w n o n th e d r a w in g b y b a s ic d o c u me n t n u mb e r o n ly o r b y a p a r tic u la r is s u e , s u p e r s e d in g s p e c if ic a tio n s ( n e w n u mb e r ) s h a ll n o t b e imp o s e d in e ith e r c u r r e n t o r f u tu r e p r o c u r e me n t a c tio n s u n le s s th e d r a w in g is r e v is e d to s h o w th e n e w b a s ic d o c u me n t n u mb e r a n d , if a p p lic a b le , is s u e a n d c u r r e n t p r o c u r e me n t a c tio n s a me n d e d to s p e c if y th e n e w d r a w in g r e v is io n o r E O . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 25 3. DRAFTING PRACTICES 3.1. General T h e s e d r a f t i n g p r a c t i c e s a r e t o b e e mp l o ye d in th e p r e p a r a tio n o f d r a w in g s b y G S F C p e r s o n n e l t o a c h i e v e c o mmo n a l i t y t h r o u g h o u t a n d r e s u l t i n l e g i b l e r e p r o d u c tio n s a t th e le a s t c o s t f r o m o r ig in a l d r a w in g s . D r a w in g s mu s t b e c o mp le te a n d u n a mb ig u o u s in in te r p r e ta tio n . Co mp le te d r a w in g s c o n ta in o r ma k e r e f e r e n c e to a ll d a ta n e c e s s a r y f o r f a b r ic a tin g a n d in s ta llin g th e p a r t a n d , w h e n a p p lic a b le , th e n e c e s s a r y te s t r e q u ir e me n ts , p r o c u r e me n t r e q u ir e me n ts , a n d s o u r c e . T h ir d - a n g le o r th o g r a p h ic p r o j e c tio n s h a ll b e u s e d f o r me c h a n ic a l e n g in e e r in g d r a w in g s . ( Ce r ta in d ia g r a ms , s c h e ma tic s , e tc . , a r e e x c e p te d . ) A lth o u g h o th e r typ e s o f p r o j e c tio n , s u c h a s is o me tr ic , p e r s p e c tiv e , e tc . , a r e n o t p r o h ib ite d , th e ir u s e mu s t b e c o n f i n e d t o a n a u x i l i a r y v ie w o n a d r a w i n g o f a c o mp l e x p a r t w h e n such a view shall aid in visualizing the part. D r a w in g s n e e d n o t h a v e th r e e v ie w s , ( i. e . , o n e o r tw o v ie w s a r e p e r mis s ib le f o r o b j e c ts th a t c a n b e c o mp le te ly d e f in e d ) . Co mp le me n ta r y n o te s o r d ime n s io n s a r e acceptable in place of the additional views. The rule shall be that only those v ie w s s h a ll b e d r a w n th a t a r e n e c e s s a r y to c o n v e y th e r e q u ir e d c h a r a c te r is tic s o f t h e p a r t . V i e w s , d ime n s i o n s , e t c . , s h a l l n o t e x t e n d i n t o t h e ma r g i n s o f t h e d r a w in g . 3.2. Lines A c c e p t a b l e q u a l i t y o f r e p r o d u c t i o n s i s d e p en d e n t o n t h e d e n s i t y a n d u n i f o r mi t y o f lin e w o r k ( a n d le tte r in g ) . T yp e s o f lin e s d e s c r ib e d h e r e in a r e me r e ly lin e c o n v e n - t i o n s , b u t i n e v e r y c a s e , e a c h t y p e o f l i ne s h a l l b e o p a q u e a n d o f u n i f o r m w i d t h a n d s h a ll b e u s e d o n a ll d r a w in g s o th e r tha n d i a g r a ms , s u c h a s s c h e ma t i c s , e t c . 3.2.1. Ink Lines and Plotted Lines L in e s , w h e th e r h a n d - d r a w n o r p lo tte d , s h a ll b e o p a q u e a n d o f uniform width for each type of line. Two widths of lines, i.e., thin a n d th ic k , w ith th e ir w id th s in th e p r o p o r tio n s o f 1 :2 , s h a ll b e u s e d . The actual width of each type of line shall be governed by the size a n d s t y l e o f t h e d r a w i n g ; t h e r e l a t i v e w i d th s o f t h e l i n e s s h a l l a p p r o x ima te th o s e s h o w n in F ig u r e 4 o n p a g e 2 6 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 26 ENGINEERING DRAWING STANDARDS MANUAL Figure 4: Line Types and Conventions X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 27 3.2.2. Pencil Lines P e n c il lin e s s h a ll b e o p a q u e a n d o f u n if o r m w id th th r o u g h o u t th e ir le n g th . T h e lin e w id th s w h ic h a r e s p e c if ie d f o r in k lin e s d o n o t a p p ly to p e n c i l l i n e s . C u t t i n g a n d v ie w i n g p la n e l i n e s a r e t h e t h i c k e s t l i n e s on the drawing. However, the thick lines used for outlines and o th e r v is i b le l i n e s s h a l l b e s u f f i c i e n t l y p r o mi n e n t t o i mme d ia t e l y d if f e r e n tia te th e m f r o m lin e s u s e d f o r o th e r p u r p o s e s . H id d e n , s e c tio n in g , c e n te r , p h a n to m, e x te n s io n , d ime n s io n , a n d le a d e r lin e s s h a l l b e t h i n n e r t h a n o u t l i n e s . I n s e l e c t i n g t h e w i d th s o f p e n c i l lin e s , c o n s id e r a tio n s h a ll b e g iv e n to th e me d iu m o f r e p r o d u c tio n in v o lv e d to e n s u r e p r o p e r r e p r o d u ctio n a n d r e d u c tio n o f th e th in n e r lines. 3.2.3. Types of Lines 3.2.3.1. Center Lines Ce n te r lin e s s h a ll b e c o mp o s e d o f lo n g a n d s h o r t d a s h e s , a lte r n a te ly and evenly spaced, with a long dash at each end. Center lines shall c r o s s w ith o u t v o id s . S e e F ig u r e 5 , b e lo w , a n d F ig u r e 6 , p a g e 2 8 . Figure 5: Line Conventions V e r y s h o r t c e n te r lin e s ma y b e u n b r o k e n if th e r e is n o c o n f u s io n w i t h o th e r l i n e s . C e n te r l i n e s s ha l l a l s o b e u s e d t o i n d i c a t e t h e tr a v e l o f a c e n te r . S e e F ig u r e 6 o n p a g e 2 8 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 28 ENGINEERING DRAWING STANDARDS MANUAL Figure 6: Alternate Position 3.2.3.2. Dimension Lines D i me n s i o n l i n e s s h a l l t e r mi n a t e i n a r r o w h e a d s a t e a c h e n d . T h e y s h a l l b e u n b r o k e n e x c e p t w h e r e s p a c e i s r e q u i r e d f o r t h e d i me n s i o n . T h e p r o p e r me th o d o f s h o w in g d ime n s io n s a n d to le r a n c e s is e x p la in e d in S e c tio n 1 . 7 o f A N S I Y 1 4 . 5 M- 1 9 8 2 . 3.2.3.3. Leaders L e a d e r s s h a ll b e u s e d to in d ic a te a p a r t o r p o r tio n to w h ic h a n u mb e r , n o te , o r o th e r r e f e r e n c e a p p lie s a n d s h a ll b e a n u n b r o k e n l i n e t e r mi n a t i n g i n a n a r r o w h e a d , d o t, o r w a v y l i n e . A r r o w h e a d s s h o u l d a l w a y s t e r mi n a t e a t a l i n e ; d o t s s h o u l d b e w i t h i n t h e o u t l i n e o f a n o b j e c t. 3.2.3.4. Break Lines S h o r t b r e a k s s h a ll b e in d ic a te d b y s o lid f r e e h a n d lin e s . F o r lo n g b r e a k s , f u l l r u l e d l i n e s w i t h f r e e h an d z i g z a g s s h a l l b e u s e d . S h a f t s , r o d s , tu b e s , e tc . , w h ic h h a v e a p o r tio n o f th e ir le n g th b r o k e n o u t, s h a ll h a v e th e e n d s o f th e b r e a k d r a w n a s in d ic a te d in F ig u r e 7 o n page 29. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 29 Figure 7: Break Lines 3.2.3.5. Phantom Lines Phantom lines shall be used to indicate the alternate position of parts of the item delineated, repeated detail, or the relative position o f a n a b s e n t p a r t a n d s h a ll b e c omp o s e d o f a lte r n a tin g o n e lo n g a n d two short dashes, evenly spaced, with a long dash at each end. See F ig u r e 5 o n p a g e 2 7 , F ig u r e 6 o n p a g e 2 8 , a n d F ig u r e 8 , b e lo w . Figure 8: Repeated Detail 3.2.3.6. Sectioning Lines Sectioning lines shall be used to indicate the exposed surfaces of a n o b j e c t i n a s e c t i o n a l v ie w . T h e y a r e g e n e r a l l y t h i n f u l l l i n e s , b u t ma y v a r y w ith th e k in d o f ma te r ia l s h o w n in s e c tio n . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 30 ENGINEERING DRAWING STANDARDS MANUAL 3.2.3.7. Extension Lines E x t e n s i o n l i n e s a r e u s e d t o i n d i c a te t h e e x t e n s i o n o f a s u r f a c e o r t o p o in t t o a l o c a t i o n o u ts i d e t h e p a r t o u t l i n e . T h e y s t a r t w i t h a s h o r t , v is i b le g a p f r o m t h e o u t l i n e o f t h e p a r t a n d a r e u s u a l l y p e r p e n d ic u l a r t o t h e i r as s o c i a t e d d i me n s i o n l i n e s . 3.2.3.8. Hidden Lines Hidden lines shall consist of short dashes, evenly spaced. These lin e s a r e u s e d to s h o w th e h id d e n f e a t u r e s o f a p a r t . T h e y s h a l l a l w a y s b e g in w i t h a d a s h i n c o n ta c t w i t h t h e l i n e f r o m w h i c h t h e y b e g in , e x c e p t w h e n s u c h a d a s h w o u ld f o r m a c o n tin u a tio n o f a f u ll l i n e . D a s h e s s h a l l t o u c h a t c o r ne r s , a n d a r c s s h a ll b e g in w ith d a s h e s o n th e ta n g e n t p o in ts . S e e F ig u r e 5 o n p a g e 2 7 a n d F ig u r e 8 on page 29. 3.2.3.9. Stitch Lines S t i t c h l i n e s s h a l l b e u s e d t o i n d ic a t e t h e s t i t c h in g o r s e w i n g l i n e s o n a n a r tic le a n d s h a ll c o n s is t o f a s e r ie s o f v e r y s h o r t d a s h e s , a p p r o x ima te ly h a lf th e le n g th o f d a s h o r h id d e n lin e s , e v e n ly s p a c e d . L o n g l i n e s o f s t i t c h i n g ma y b e i n d i c a t e d b y a s e r i e s o f stitch lines connected by phantom lines. 3.2.3.10. Outlines or Visible Lines T h e o u t l i n e o r v is i b le l i n e s h a l l b e u s e d f o r a l l l i n e s o n t h e d r a w i n g r e p r e s e n tin g v is ib le lin e s o n th e o b j e c t; s e e F ig u r e 5 o n p a g e 2 7 . 3.2.3.11. Datum Lines D a tu m lin e s s h a ll b e u s e d to in d ic a te th e p o s itio n o f a d a tu m p la n e a n d s h a ll c o n s is t o f o n e lo n g d a s h a n d tw o s h o r t d a s h e s , e v e n ly spaced. 3.2.3.12. Cutting-Plane/Viewing-Plane Lines The cutting-plane lines shall be used to indicate a plane or planes in w h ic h a s e c tio n is ta k e n . T h e v ie w in g - p la n e lin e s s h a ll b e u s e d to indicate the plane or planes from which a surface or surfaces are v i e w e d . O n s i mp l e v i e w s , t h e c u t t i n g p l a n e s s h a l l b e i n d i c a t e d a s s h o w n in F ig u r e 9 o n p a g e 3 1 . V ie w s h a ll b e s h o w n in b a c k o f th e cutting plane (3rd angle). X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 31 Figure 9: Full Sectional View O n c o mp l e x v i e w s , o r w h e n t h e c u ttin g p la n e s a r e b e n t o r o f f s e t, th e c u ttin g p la n e s s h a ll b e in d ic a te d a s s h o w n in F ig u r e 1 0 . Figure 10: Offset Sections X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 32 ENGINEERING DRAWING STANDARDS MANUAL 3.3. Lettering and Numerals A ll le tte r in g s h a ll b e u p p e r c a s e ( c a p ita l le tte r s ) . N u mb e r s s h a ll b e A r a b ic n u me r a l s . T h e l e t t e r i n g a n d n u me r a l s s ha l l a l w y a s b e p l a c e d i n a h o r i z o n t a l reading position as far as practicable. Other than this, lettering shall be in a h o r iz o n ta l r e a d in g p o s itio n w h e n th e d r a w in g is r o ta te d 9 0 ° c lo c k w is e . L e g ib le le tte r in g is e s s e n tia l f o r r e p r o d u c tio n s . L e tte r s a n d /o r n u me r a ls s h a ll n o t r u n to g e th e r . W h e n t y p e w r i t t e n l e t t e r s o r d ig i t s a r e u s e d o n d r a w i n g s o r r e l a t e d d a t a , n o th in g s ma l l e r t h a n p ic a t y p e i s p e r mi t t e d . 3.3.1. Style O t h e r t h a n b e i n g u p p e r c a s e R o man a n d p l a c e d i n a h o r i z o n t a l r e a d in g p o s itio n , th e le tte r in g is th a t o f th e in d iv id u a l's s tyle . 3.3.2. Heights L e t t e r i n g h e i g h ts s h a l l b e a s f o l l o w s : Lettering Drawing Feature: h e ig h t in inches D r a w in g n u mb e r in id e n tif ic a tio n b lo c k s .25 Drawing title and description of drawing type above L/M .25 D r a w i n g s u b t i t l e , b o r d e r , l e t t e r s , a n d n u me r a l s .19 S e c tio n , d e ta il, v ie w , a n d ta b u la tio n le tte r s .25 D e s c r i p t i o n t i t l e s o f s e c t i o n , d e t a i l , v ie w , n o te s , a n d ta b u la tio n s .19 D i me n s i o n s , t o l e r a n c e s , l i mi t s , n o te s , s u b t i t l e s , t a b le s , r e v is io n , a n d z o n e le tte r s o n th e f ie ld o f th e d r a w in g .16 L is t o f ma te r ia ls in f o r ma tio n , n a me b lo c k s , u s e d o n , a n d .14 next assy Note: Use of fit text is not allowed. 3.4. Scale D r a w in g s s h a ll b e ma d e to f u ll s c a le u n le s s t h e p a r t s ( o r a s s e mb l y) a r e t o o l a r g e t o p e r mi t i t o r s o s ma l l a n d c o mp l e x t h a t d r a w i n g t o a n e n l a r g e d s c a l e i s e s s e n t i a l f o r c l a r i t y . W h e n t h e ma i n v i e w s o f l a r ge p a r t s a r e d r a w n t o a r e d u c e d s c a l e , t h e d e ta il v ie w s “ ta k e n ” to c la r if y d e ta il s h o u ld b e ma d e to f u ll s c a le w h e n e v e r p o s s ib le . W h e n th e p a r t h a s b e e n d r a w n to a n e n l a r g e d s c a l e f o r c l a r i t y , i t i s n o t n e c e s s a r y t o ma k e a n a c t u a l - s i z e v i e w . a. T h e s c a l e s p r e f e r r e d f o r e n g i n e e r i n g d r a w in g s a r e f u ll s iz e 1 /1 , r e d u c e d 1 /2 , 1 /4 , 1 /1 0 , 1 /2 0 , a n d e n la r g e d 2 /1 , 4 /1 , 1 0 /1 , 2 0 /1 . T h e c o mp u te r d a ta b a s e f o r t h e f o r ma t s i z e s h a l l b e 1 / 1 a t a l l t i me s . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 33 EXCEPTION: Ce r ta in d r a w in g s o r f ig u r e s , b y th e ir v e r y n a tu r e , c a n n o t b e d r a w n to a s p e c i f i c s c a l e ( f o r e x a mp l e , w i r i n g an d s c h e ma tic d ia g r a m d r a w in g s . ) T h e scale designation for these cases is “NONE.” See “b,” below. b . T h e s c a l e , a s n o t e d a b o v e , o r t h e w o r d “ N O N E ” mu s t b e e n t e r e d i n t h e T i t l e b lo c k . D o n o t u s e th e w o r d “ S I Z E ” f o llo w in g th e r a tio . T h e n o ta tio n s “ 1 /4 & N O T E D ” o r “ 1 /2 & N O T E D , ” e tc . , a p p ly to th o s e d r a w in g s o n w h ic h th e ma in v ie w s a r e t o a r e d u c e d s c a l e a n d a u x i l i a r y v ie w s a r e t o s o me o th e r s c a l e . c . T o ma i n t a i n c o n s i s t e n c y w i t h t i t l e b lo c k c a l l o u t f o r s c a l e , d e t a i l v ie w s s h a l l b e n o te d th u s : DETAIL -A SCALE 1/1 Note: The scale of the view shall be stated only when it differs from that noted in t h e T i t l e b lo c k , w h i c h r e p r e s e n t s t h e ma j o r i t y o f v ie w s a n d s e c t i o n s . d . O r ig in a l p e n c il d r a w in g s s h o u ld b e to s c a le w ith in 0 . 0 3 in c h . W h e n c h a n g e s to an existing drawing take place, it is required to indicate that a particular f e a tu r e is n o t to s c a le b y u n d e r lin in g th e d ime n s io n s w ith a s tr a ig h t lin e . e. T h e g e o me tr y o f CA D - p r o d u c e d d r a w in g s s h a ll b e e n te r e d in to th e e le c tr o n ic d a ta b a s e a t o n e - to - o n e ( f u ll) s c a le . 3.5. Positioning the Part on the Drawing I n s ta lla tio n s s h a ll u s u a lly b e p o s itio n e d o n th e d r a w in g a s th e y w o u ld b e s e e n w h e n v ie w e d f r o m th e le f t s id e o r to p s id e o f th e e q u ip me n t w ith its f o r w a r d e n d p o in t i n g t o t h e l e f t . I f c la r ity c a n b e g r e a tly imp r o v e d b y a p o s itio n th a t r e s u lts in f e w e r h id d e n lin e s a n d f o r e s h o r te n e d p r o j e c tio n s , th e n th a t p o s itio n s h o u ld b e u s e d , a n d th e a b o v e r u le s h o u ld b e d is r e g a r d e d . S u c h in s ta n c e s w o u ld b e a d o o r o r d o o r j a mb w h ic h in s ta lls o n th e r ig h t s id e b e in g d r a w n w ith th e f o r w a r d p o r tio n to th e r ig h t, o r a n u mb e r o f ite ms in s ta lle d o n th e f o r w a r d s id e o f a p a n e l b e in g d r a w n lo o k in g a t the forward side. P a r ts a n d min o r a s s e mb lie s a r e n o t n e c e s s a r ily d r a w n in th e p o s itio n th e y a s s u me i n t h e e q u i p me n t . T h e y ma y b e d r a w n wi t h s o me s u r f a c e , s i d e , o r r e f e r e n c e l i n e p a r a lle l o r p e r p e n d ic u la r to th e lo w e r b o r d e r o f th e d r a w in g . L a th e - tu r n e d p a r ts a r e u s u a l l y d r a w n w i t h t h e l ar g e r d i a me t e r s t o t h e l e f t . 3.5.1. Picturization U n n e c e s s a r y d e t a i l s h a l l b e o mi t t e d f r o m a l l v ie w s a n d s e c t i o n s i f c l a r i t y i s n o t s a c r i f i c e d a n d i f d r a f t i n g t i me i s r e d u c e d . S e e F i g u r e 11 on page 34. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 34 ENGINEERING DRAWING STANDARDS MANUAL Figure 11: Details of Auxiliary 3.5.2. Sections a. A s e c tio n a l v ie w s h a ll b e ma d e th r o u g h a n o u ts id e v ie w a n d n o t th r o u g h a n o th e r s e c tio n a l v ie w . S e e F ig u r e 1 2 o n p a g e 3 5 . b . T h e lo c a tio n o f a s e c tio n is i n d i c a t e d b y a c u t t i n g p l a n e w i t h r e f e r e n c e le tte r s a n d a r r o w h e a d s s h o w in g th e d ir e c tio n in w h ic h the section is viewed. c. S e c tio n a l v ie w s s h a ll n o t p r o j e c t d i r e c t l y a h e a d o f t h e c u t t i n g - p la n e a r r o w h e a d s a n d s h o u ld b e a s n e a r a s p r a c tic a b le to th e p o r tio n s o f th e d r a w in g th a t th e y c la r if y. d . T h e a x e s o f s e c tio n a l v ie w s s h o u ld n o t b e r o ta te d ; h o w e v e r , th e c u ttin g p la n e ma y v a r y in d ir e c tio n ( s e e F ig u r e 1 2 ) . I f v ie w s h a v e to b e r o ta te d , th e a n g le a n d d ir e c tio n o f r o ta tio n mu s t b e g iv e n . e. Visible and invisible outlines beyond the cutting plane should n o t b e s h o w n u n le s s n e c e s s a r y f o r c la r if ic a tio n . f. S h a f ts , b o lts , n u ts , e tc . , w h ic h a r e in a c u ttin g p la n e s h o u ld n o t b e c r o s s - h a tc h e d . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 35 NOT RECOMMENDED SECTION ROTATED XX° CW INCORRECT PROJECTION A WRONG SIDE OF CUTTING PLANE NOT ACCEPTABLE A CORRECT BUT NOT IN LINE OF PROJECTION SECTION A-A CORRECT BUT NOT IN LINE OF PROJECTION Figure 12: Designation and Positioning of Sectional Views g . T h e c r o s s - h a tc h in g s ymb o l f o r c a s t ir o n s h o u ld b e u s e d r e g a r d le s s o f ma te r ia l a s s h o w n in F ig u r e 1 3 . I f e s s e n tia l f o r c la r ity, ma te r ia l f r o m w h ic h th e p a r ts a r e ma d e s h o u ld b e in d ic a te d b y th e c o n v e n tio n s g iv e n in A N S I Y 1 4 . 2 M- 1 9 7 9 . CAST OR MALLEABLE IRON AND GENERAL USE FOR ALL MATERIALS Figure 13: Conventions for Material h . W h e n s e c t i o n s a r e r e mo t e l y l oc a t e d , z o n e i n f o r ma t i o n s h a l l b e a d d e d to b o th lo c a tio n s ( i. e . , f r o m w h e r e th e s e c tio n is ta k e n and to the location where the section is shown). X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 36 ENGINEERING DRAWING STANDARDS MANUAL 3.5.3. Views A v i e w i s u s e d t o e n l a r g e o r c l a rif y a p o r tio n o f th e d r a w in g . S e e F ig u r e 1 4 . A D 5A SH3 A 1D A SEE VIEW A-A SH1 SCALE 2/1 (TITLE BLOCK NOT SHOWN) 1 5 Figure 14: Clarification of a Portion of a Drawing a. P r o j e c te d v ie w s w h ic h a r e s h o w n a lo n g c o mmo n c e n te r lin e s to t h e i r o r i g i n n e e d n o t b e i d e n t i f i e d . V i e w s l o c a t e d d ir e c t l y a h e a d o f v i e w i n g p l a n e a r r o w h e a d s a r e a b s o l u t e l y p r o h ib i t e d . b . “ T r a n s p o r te d ” v ie w s o r s e c tio n s a r e th o s e w h ic h a r e n o t d ir e c t p r o j e c tio n s . T h e y mu s t b e id e n tif ie d w h e r e s h o w n , b y le tte r s , a n d a t t h e i r o r i g i n b y t h e c u t t i n g p la n e l i n e s a n d l e t t e r s . c. V ie w s s h o u ld n o t b e r o ta te d ; h o w e v e r , if v ie w s h a v e to b e r o t a t e d f o r a l e g i t i ma t e r e a s o n , t h e a n g le a n d d ir e c t i o n o f r o ta tio n mu s t b e g iv e n . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 37 3.5.4. Details A d e ta il is a p a r tia l v ie w w h ic h s h o w s a p o r tio n o f a n o th e r v ie w in t h e s a me p la n e a n d w i l l u s u a l l y d e p ic t g r e a t e r d e t a i l . D e t a i l s s h o u ld n o t b e r o ta te d . S e e F ig u r e 1 5 . DETAIL A SCALE 4/1 SEE DETAIL A Figure 15: Identification of Details 3.5.5. Identification of Sections, Views, and Details a. I d e n tif yin g le tte r s f o r s e c tio n s , v ie w s , a n d d e ta ils a r e a s s ig n e d in a lp h a b e tic a l s e q u e n c e a s f o llo w s : F o r s e c tio n s a n d s u c h v ie w s a s “ A - A ” in F ig u r e 1 4 o n p a g e 3 6 , u s e h yp h e n a te d le tte r s . A f te r “ Z - Z , ” b e g in : “A A - A A , ” “ A B - A B , ” e t c . b . F o r e n c ir c le d d e ta ils s u c h a s d e ta il “ A ” in F ig u r e 1 5 , u s e s in g le letters. After “Z,” begin: “AA,” “AB,” etc. c. The letters “I,” “O,” “Q,” and “X,” either as a single letter or as d o u b le - le tte r e n tr ie s , s h a ll n o t b e u s e d . A d e s ig n a te d le tte r o r c o mb in a tio n o f le tte r s o n a r e le a s e d d r a w in g s h a ll n o t b e u s e d f o r a n o th e r s e c tio n , v ie w , o r d e ta il o n th e s a me d r a w in g . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 38 ENGINEERING DRAWING STANDARDS MANUAL 3.5.6. Locating Sections, Views, and Details O n z o n e d a n d /o r mu l t i s h e e t d r a w i n g s , a v ie w , s e c t i o n , o r d e t a i l a n d t h e p o r t i o n o f t h e d r a w i n g i t c l a r i f i es s h a l l b e c r o s s - r e f e r e n c e d a s follows: Reference on Original Drawing to Reference at View on Clarifying View on Clarifying Sheet Sheet to Original Drawing 5A VIEW A-A 1D SEE VIEW A-A SH3 SH1 SCALE 4/1 N o te : Z o n e b lo c k s iz e is 1 /2 - in c h s q u a r e . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 39 4. TYPES OF DRAWINGS 4.1. Altered or Selected Vendor Part Drawing A lte r e d v e n d o r p a r t o r s e le c te d v e n d o r p a r t d r a w in g s s h a ll b e p r e p a r e d o n G S F C f o r ma t w h e n a n e x is tin g v e n d o r p a r t c a n n o t b e u s e d a s is a n d it is d e s ir e d to d o c u me n t a n d c o n tr o l th e a lte r a tio n o r s e le ctio n o f th e p a r t. P r e p a r a tio n s h a ll n o t b e i n i t i a t e d u n t i l t h e v e n d o r h a s b e e n r eq u e s t e d t o ma k e t h e a l t e r a t i o n o r s e le c tio n , s u p p ly h is n u mb e r , a n d s u p p ly d o c u me n ta tio n . W h e n th e d r a w in g is p r e p a r e d b y G S F C, it s h a ll s p e c if y th e p a r t to b e a lte r e d o r s e le c te d b y v e n d o r n u mb e r , n a me , a n d a d d r e s s a n d s h a ll c o mp le te ly d e lin e a te th e a lte r a tio n o r selection. In addition, the drawing shall specify reidentification of the part by th e G S F C p a r t n u mb e r . A n a lte r e d o r s e le c te d v e n d o r p a r t d r a w in g s h a ll b e id e n tif ie d b y th e w o r d s “ A lte r e d V e n d o r P a r t D r a w in g ” imme d ia te ly a b o v e th e T i t l e b lo c k . S e e F i g u r e 1 6 . R V IO E IS N D S IP N E CR TIO S M Y D TE A A PR V L P O A N TES: U LESS O O N THER ISE SPEC W IFIED 1. ALTER PAR SO R E IN R ATIO ; ED T U C FO M N PAR NO 118-R T : -0715 RELAY VEN O ; LEAC C R D R H O P. AD RESS; LO AN ELES, C D S G ALIF. 2. IN STAM PAR N M K P T U BER PER .......... SU ESTED SO RC O SU G U E F PPLY (INK) ............... ............... ............... + .006 ø .218 - .000 -1 H LE O ENLAR E EXISTIN G G ø .166 HOLE AT THIS LO ATIO O LY C N N LD LINE FO R V E ALTER VE O P T DR ING ED ND R AR AW C SEE N TE 2 O G (R EN EID TIFY THE PART TO GSFC PART ITEM R 'D EQ R 'D EQ PA T NO R . DE CR S IPTION M TER L A IA M TER L S E & N . A IA P C O N . O N M U BER GCXXXXXXX.) LIST O M F ATERIAL U LE S O E W E SP C N S TH R IS E IFIED IM S N A E IN IN H S -D EN IO S R C E NATIO A A O A N L ER N UTIC A D S N TO R N ES LE A C : S ACE A M IS ATIO P D IN TR N Goddard Space Flight Center G E N LT, M R LA D R E BE A Y N .XX .XXX FRACTIONS 125 N M A E INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN INTE P ETE PER G FC-X R W G R R D S 673-64-1 D S N R E IG E R M V A B R S A D S A P ED E R .010 O C A FER M X E O E LL U R N H R G S R H M A . D A N R W TITLE FLIG HARD ARE/PO FAB HARD HT W ST NESS TEST REQ'D HARDNESS TEST N T REQ O UIRED NO FLIG N HT TEST HARDNESS PER ASTM E-18, LOCATIO O N PTIONAL C E KED H C TEST HARDNESS PER ASTM E-18 WHERE INDICATED A PRO D P VE O FIELD O DRAW N F ING THUS N NO O N-DESTRUCTIVE EXAMINATION (NDE) REQ'D A PRO D P VE NDE REQUIRED PER S-313-009 CODE TH D AW G W S PR D C D U IN IS R IN A O U E S G REV A PRO D TR S P VE -S E S S FTW R O A E: V SIO : ER N GC A PR VE -E G E R P O D N IN E FILE N M : A E N XT A E SSY U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 16: Sample Altered or Selected Vendor Part Drawing X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 40 ENGINEERING DRAWING STANDARDS MANUAL 4.2. Assembly Drawing A n a s s e mb ly d r a w in g s h o w s tw o o r mo r e s e p a r a b le p a r ts j o in e d to f o r m a s to c k a b le ite m, o r a g r o u p o f a s s e mb lie s r e q u ir e d to f o r m a n a s s e mb ly o f h ig h e r o r d e r . F ig u r e 1 7 s h o w s a n e x a mp le o f a n a s s e mb ly d r a w in g w h e n a s e p a r a te p a r ts lis t is r e q u ir e d . F ig u r e 3 4 , “ A s s e mb ly D r a w in g W ith L is t o f Ma te r ia l, ” o n p a g e 8 0 , s h o w s a n a s s e mb ly d r a w in g w ith th e L is t o f Ma te r ia l o n th e d r a w in g . Re f e r a ls o to S e c tio n 5 . 1 , “ P a r t N u mb e r in g , ” o n p a g e 6 1 . R V IO E IS N D S IP N E CR TIO S M Y D TE A A PR V L P O A 1 GXXXXXX1 7 MS15795-305 8 MS35649-63 2X GXXXXXX5 2 9 MS35234-17 2X 10 MS15795-305 11 MS35649-44 2X 3 GXXXXXX6 D LINE FOL 4X 4 GXXXXXX3 REV 2X 5 GXXXXXX4 6 GXXXXXX2 GC ITEM R 'D EQ R 'D EQ PA T NO R . DE CR S IPTION M TER L A IA M TER L S E & N . A IA P C O N . O LIST O M F ATERIAL U LE S O E W E SP C N S TH R IS E IFIED IM S N A E IN IN H S -D EN IO S R C E NATIO A A O A N L ER N UTIC A D S N TO R N ES LE A C : S ACE A M IS ATIO P D IN TR N Goddard Space Flight Center G E N LT, M R LA D R E BE A Y N .XX .XXX FRACTIONS 125 N M A E INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN INTE P ETE PER G FC 673-64-1 R W G R R D S -X D S N R E IG E R M V A B R S A D S A P ED E R .010 O C A FER M X E O E LL U R N H R G S R H M A . D A N R W TITLE FLIG HARD ARE/PO FAB HARD HT W ST NESS TEST REQ'D HARDNESS TEST N T REQ O UIRED NO FLIG N HT TEST HARDNESS PER ASTM E-18, LOCATIO O N PTIONAL C E KED H C TEST HARDNESS PER ASTM E-18 WHERE INDICATED A PR VE P O D O FIELD O DRAW N F ING THUS N NO O N-DESTRUCTIVE EXAMINATION (NDE) REQ'D A PR VE P O D NDE REQUIRED PER S-313-009 CODE TH D AW G W S PR D C D U IN IS R IN A O U E S G REV A PR VE -S E S P O D TR S S FTW R O A E: V SIO : ER N GC A PR VE -E G E R P O D N IN E FILE N M : A E N XT A E SSY U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 17: Sample Assembly Drawing X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 41 4.3. Detail Drawing A d e t a i l d r a w i n g s h o w s a l l t h e i n f o r ma t i o n n e c e s s a r y f o r f a b r i c a t i n g a n i t e m, in c lu d in g th e ma te r ia l f r o m w h ic h it is ma d e a n d th o s e f in is h e s , p r o te c tiv e c o a tin g s , a n d p r o c e s s e s r e q u ir e d to f a b ric a te th e e n d p r o d u c t. O n ly o n e ite m ( d e ta il p a r t) s h a ll b e p r e s e n te d p e r d r a w in g . S e e F ig u r e 1 8 . RE IS N V IO D S R TIO E C IP N S M Y D TE A A P O A P R V L N TES: U LESS O O N THER ISE SPEC W IFIED 1. IRIDITE IN AC O DAN E W C R C ITH MIL-C-5541. CLASS1A. 2 R BBER STAM .125 H H C AR TER U P IG H AC S AS SH W U G ____________. O N SIN O IG AL SO R O SU R IN U CE F PPLY: _________ INSER C M T O PLETE AD RESS D _________ O .500 1.500 .750 LD LINE FO REV 1.000 1.120 2.250 C BAR AL ALY Q -A Q -225/8 6061-T6 G ITEM R 'D EQ R Q E 'D P R N . A T O D S R TIO E C IP N M TE IAL A R M TE IA S E & N . A R L P C O N . O LIST O M F ATERIAL U LE S O E W E S E IFIE -D E S N A E IN IN H N S TH R IS P C D IM N IO S R C ES N TIO A A R N U S A D A N L E O A TIC N TOLER CES: AN S A E A M IS ATIO P C D IN TR N Goddard Space Flight Center G E N ELT, M R LA D R E B A Y N .XX .XXX FRACTIONS 125 N M A E INIT DATE ±.02 ±.005 ±1° ±1/16 D A IN IN R R TE P R G FC 673-64-1 R W G TE P E D E S -X DE IG E S N R R M V A B R S A D S A P E G R .010 O C AM R M X E O E LL U R N H R D ES R H FE A . DR W A N TITLE FLIG HA HT RDWARE/PO FAB HA ST RDNESS TES R 'D T EQ HARDNESS TEST N T RE UIRE O Q D NO FLIG N HT TES H T ARDNESS PE AS R TME-18, LOCATIO O N PTIONAL CH C E E K D TES H T ARDNESS PE AS R TME-18 W ERE IND H ICATED O FIELD O DR ING THUS N F AW AP R V D P O E N NO O N-DESTRUCTIVE EXAMINATIO (ND REQ N E) 'D AP R V D P O E NDE REQ IRED PER S-313-009 CO U DE TH D A IN W S P O U ED U IN IS R W G A R D C S G REV AP R V D TR S P O E -S E S SOFTW R : A E V R E SIO : N GC AP R V D N IN R P O E -E G EE FILE N M : A E N XT ASS E Y U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 18: Sample Detail Drawing I n th e c a s e o f in s e p a r a b le p a r ts ( s u c h a s th o s e th a t a r e w e ld e d , r iv e te d , b o n d e d , o r b r a z e d , e t c . ) w h i c h f o r m a n i n t e g r a l u n i t ( p a r t ) n o t c a p a b l e o f b e i n g d i s a s s e mb l e d f o r r e p l a c e me n t , r e f e r t o p a r a g r a p h 4 . 6 e n t i t l e d “ I n s e p a r a b l e A s s e mb l y D r a w i n g ” on page 44. M u l t i d e t a i l d r a w i n g s a r e n o t a l l o w e d . T h e G S F C r e q u ir e s a u n iq u e d r a w i n g n u mb e r p e r p a r t s o t h a t e a c h p a r t c a n b e i n d i v i d u a l l y e s t i ma t e d b y f a b r i c a t o r s a n d id e n tif ie d f o r in s p e c tio n a n d c o n f ig u r a tio n tr a c k in g . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 42 ENGINEERING DRAWING STANDARDS MANUAL 4.4. Drawing Tree A d r a w i n g t r e e i s u s e d t o c o n t r o l t h e d ev e l o p me n t o f d r a w i n g s a n d t h e i r p l a c e i n th e o v e r a ll s c h e me o f th e p r o j e c t. A lth o u g h th is typ e d r a w in g is n o t a r e q u i r e me n t f o r e a c h p r o j e c t , w h e n u s e d p ro p e r l y a n d k e p t u p t o d a t e , i t c a n b e a v a lu a b le ma n a g e me n t a id a n d c a n b e co n ta in e d in a c o n f ig u r a tio n ma n a g e me n t d a ta b a s e . S e e F ig u r e 1 9 . TOP ASSY CONFIGURATION DWG GE XXXXXXX - PAYLOAD INTERFACE INSTALLATION GROUND HANDLING MODULE-A ELECTRICAL DRAWINGS EQUIPMENT 4,5 CONTROL DWGS GJ 2456000 C GJ 2450200 - * - GJ 2452100 A GE 2450300 - SOLAR ARRAY BATTERY AVIONI CS ASSY INSTALLATION DOLLY ASSY 2 GF 2456050 A TBD GE 2452200 - GJ 2450330 - ENCODER BOX UV SENSOR INSTL FRAME, WELDING 7 GE 2456042 - GD 2452250 D GE 2450350 - BRACKET, CONNECTOR STAND, MOUNTI NG GD 2456070 - GE 2450351 C DUAL BRACKET ASSY TYPICAL SYMBOL LIST LIFTING FIXTURE 1 GE 2456010 - GE 2450360 A AUTOCAD DRAWING * DRAWING SIZE BRACKET, DUAL ** DRAWING NUMBER PRE-ASSIGNED CABLE, HOIST ** DRAWING NUMBER GD 2456789 - GD 2450365 - MULTI-USE DRAWING - DRAWING REVISION LETTER LIST OUTSTANDING EO NOS. DUAL HINGE SLI NG 3 TBD TO BE DETERMINED GE 2456290 GF 24550362 - SPRING, EXTERNAL WASHER GC 2456273 GC 2450424 B SPRING, DETENT GC 2456272 Figure 19: Sample Drawing Tree X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 43 4.5. Electrical/Electronic Drawings E l e c t r i c a l / e l e c t r o n i c d r a w i n g s a r e p r e p a r e d to d e p ic t s c h e ma tic s , w ir in g d ia g r a ms , c a b l e i n t e r c o n n e c t i o n s , a n d d e t a i l e d c a b l e a s s e mb l y d r a w i n g s . 4.5.1. Electrical and Electronic Symbols A p p l i c a t i o n : S y mb o l s s h a l l b e i n a c c o r d a n c e w i t h A N S I Y 3 2 . 2 - 1 9 7 5 , G r a p h ic S y m b o ls fo r E le c tr ic a l a n d E le c tr o n ic D ia g r a m s ( o r la te r r e v is io n s ) , u n le s s o th e r w is e n o te d . G r a p h i c e l e c t r i c a l w i r in g s y mb o l s f o r a r c h i t e c tu r a l a n d e l e c t r i c a l la yo u t d r a w in g s s h a ll c o n f o r m to A N S I Y 3 2 . 9 - 1 9 7 2 , G r a p h ic S y m b o ls fo r E le c tr ic a l W ir in g a n d L a y o u t D ia g r a m s U s e d in A r c h ite c tu r e a n d B u ild in g Co n s tr u c tio n ( o r l a t e r r e v i s i o n s ) . 4.5.2. Electrical and Electronic Diagrams A p p l i c a t i o n : D i a g r a ms s h a l l b e i n a c c o r d a n c e w i t h A N S I Y 1 4 . 1 5 - 1 9 6 6 ( R- 7 3 ) E le c tr ic a l a n d E le c tr o n ic D ia g r a m s ( o r l a t e r r e v is io n s ) ; A N S I Y 1 4 . 1 5 a - 1 9 7 1 , I n te r c o n n e c tio n D ia g r a m s, s u b s e c tio n 1 5 - 1 1 ; A N S I Y 1 4 . 1 5 b - 1 9 7 3 , E le c tr ic a l a n d E le c tr o n ic s D ia g r a m s , s u b s e c tio n s 1 5 - 1 th r o u g h 1 5 - 1 0 , a n d 1 5 - 1 2 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 44 ENGINEERING DRAWING STANDARDS MANUAL 4.6. Inseparable Assembly Drawing A n i n s e p a r a b l e a s s e mb l y d r a w i n g d e l i n e a te s i t e ms ( p i e c e s ) w h i c h a r e s e p a r a t e l y f a b r i c a t e d a n d a r e p e r ma n e n t l y j o i n e d t o g e t h e r ( e . g . , w e l d e d , b r a z e d , r i v e t e d , n a ile d , b o n d e d , e tc . ) to f o r m a n in te g r a l u n it ( p a r t) n o t c a p a b le o f b e in g r e a d ily d is a s s e mb le d . A n in s e p a r a b le a s s e mb ly d r a w in g ma y b e p r e p a r e d in lie u o f in d iv id u a l mo n o d e ta il d r a w in g s f o r in s ep a r a b le a s s e mb lie s in te n d e d to b e procured and replaced as a unit, where (except for standard hardware) the s e p a r a t e p a r t s a r e o f s i mi l a r o r c o mp a t i b l e ma t e r i a l s . S e e F i g u r e 2 0 ( a l l d a t a , s u c h a s n o te s a n d lis t o f ma te r ia l, a r e n o t s h o w n ) . R V IO E IS N D SCR TIO E IP N S M Y D TE A A PR V L P O A .006 2X ø .125+ .000 - .063 4.000 .063 3.500 .250 R .125 1.000 1.250 .875 .250 TYP .750 1.960 .063 1.000 2 MS33588-X D GXXXXXX2 1 LINE FOL 3 MS20426-X REV GC ITEM R Q E 'D R Q E 'D P R N . A T O D S IP N E CR TIO M TER L A IA M TER L S E & N . A IA P C O N . O LIST O M F ATERIAL U LE S O E W E SP C N S TH R IS E IFIE -D EN IO S A E IN IN E D IM S N R CH S N TIO A A R N UTIC A D A N L E O A S N TO R N ES LE A C : SP E A M IS ATIO AC D IN TR N Goddard Space Flight Center G E BE M R R EN LT, A YLA D N .XX .XXX FRACTIONS 125 N M A E INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN INTE P ETE PER G FC-X R W G R R D S 673-64-1 D IG E ES N R R M V A BU R A E O E LL R S ND S A P ED E R .010 O C AM H R G S R H FER M X. A D AW R N TITLE FLIG HARDW E/PO FAB HARDNESS TEST REQ HT AR ST 'D HARDNESS TEST NO REQ T UIRED NO FLIG N HT TEST HARDNESS PER ASTM E-18, LO ATIO O C N PTIONAL C EC D H KE TEST HARDNESS PER ASTM E-18 W ERE INDICATED H AP O E PR V D O FIELD O DRAW N F ING THUS NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D AP O E PR V D NDE REQUIRED PER S-313-009 CODE TH D A INGW S PR D C D U IN IS R W A O U E S G REV AP O E -S E S PR V D TR S S FTW R O A E: V R E SIO : N GC AP O E -E G E PR V D N IN ER FILE N M : A E N X A SY E T S U ED O S N C D O E S A C LE WT SH LD LINE FO Figure 20: Sample Inseparable Assembly Drawing A n in s e p a r a b le a s s e mb ly d r a w in g s h a ll f u lly d e f in e th e e n d p r o d u c t o r d e ta il a s s e mb l y a s a s s e mb l e d . P i e c e s o f t h e i ns e p a r a b l e a s s e mb l y ma y b e d e t a i l e d e i t h e r o n s e p a r a te d e ta il d r a w in g s o r o n th e in s e p a r a b le a s s e mb ly d r a w in g its e lf . I n th e c a s e o f w e ld me n ts , th e p a r ts s h a ll n o t b e in d iv id u a lly d e ta ile d o n s e p a r a te d r a w in g s ( d u e to th e c o n s u ma b le ma te r ia l a llo w a n c e s th a t w o u ld h a v e to b e s h o w n o n d e t a i l d r a w i n g s ) , e x c e p t i n c a s e s w h e r e e x t e n s i v e ma c h i n i n g mig h t b e necessary. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 45 4.7. Installation Assembly Drawing A n in s ta lla tio n a s s e mb ly d r a w in g s h o w s w h e r e a n d h o w p a r ts a n d /o r a s s e mb lie s a r e in s ta lle d r e la tiv e to s u p p o r tin g s tr u c tu r e o r a s s o c ia te d ite ms . I t s h o w s lo c a tin g d ime n s io n s , to le r a n c in g , s p e c if ie s a tta c h in g p a r ts ( s u c h a s r iv e ts , b o lts , o r s c r e w s ) a n d s p e c i f i c a d j u s t me n t s , a s s e mb l y i n s t r u c t i o n s , a n d p r o c e s s e s r e q u ir e d f o r c o mp le tin g a n d in s p e c tin g th e in s ta lla tio n . F ig u r e 2 1 s h o w s a n e x a mp le w h e n a s e p a r a te p a r ts lis t is r e q u ir e d . R V IO E IS N D S IP N E CR TIO SYM D TE A A PR V L P O A (GXXXXXX9) .250 + .004 ø - .000 4 GXXXXXX2 1 GXXXXXX1 5 GXXXXXX3 (PEEN EN S) D ø 4.300 1.812 6 GXXXXXX4 2.500 ø 6.000 7 GXXXXXX5 2X ø .500 8 GXXXXXX6 2 GXXXXXX8 1.380 D LINE FOL 3 GXXXXX12 9 GXXXXX13 11 GXXXXX11 REV 10 GXXXXX10 1.000 .625 1.150 GC ITEM R Q E 'D R Q E 'D P R N . A T O D SCR TIO E IP N M TER L A IA M TER L S E & N . A IA P C O N . O LIST O M F ATERIAL U LE S O E W E SP IFIE -D EN N S TH R IS EC D IM SIO S A E IN IN H S N R C E N TIO A A R N UTIC A D A N L E O A S N TO R N E : LE A C S S AC A M IS ATIO P E D IN TR N Goddard Space Flight Center G E N R E BELT, M R LA D A Y N .XX .XXX FRACTIONS 125 N M A E INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN INTE P ETED PE G FC 673-64-1 R W G R R R S -X D S N R E IG E R O A B R S A D S AR EDG R .010 O C A FER M X EM VE LL U R N H P ES R H M A . D A N R W TITLE FLIG HARDW HT ARE/PO FAB HARDNESS TEST REQ ST 'D HARDNESS TEST NO REQ T UIRED NO FLIG N HT TEST HARDNESS PER ASTM E-18, LOCATIO O N PTIONAL C E KE H C D TEST HARDNESS PER ASTM E-18 WHERE INDICATED A PR V D P O E O FIELD O DRAW N F ING THUS NO NON-DESTRUCTIVE EXAMINATIO (NDE) REQ N 'D A PR V D P O E NDE REQUIRED PER S-313-009 CODE TH D A IN W S PR D C D U IN IS R W G A O U E S G REV A PR V D TR SS P O E -S E S FTW R O A E: V R E SIO : N GC A PR V D N IN E P O E -E G E R FILE N M : A E N X A SY E T S U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 21: Sample Installation Assembly Drawing a. That portion of the structure into which the installation is being installed shall b e s h o w n in p h a n to m a n d id e n tif ie d b y its p a r t n u mb e r . S u c h id e n tif ic a tio n s s h a ll b e in d ic a te d a s r e f e r e n c e in f o r ma tio n b y e n c lo s u r e o f th e p a r t n u mb e r in p a r e n th e s e s o r b y u s e o f th e s ymb o l “ RE F . ” b . A p p lic a b le d a tu m p o in ts o r p la n e s , s u c h a s c e n t e r l i n e s o f s t r u c t u r e , p l a n e o f s ymme tr y, s ta tio n p la n e s , e tc . , s h a ll b e s h o w n a n d id e n tif ie d . c. P a r t s ma y b e d e t a i l e d i n p l a c e o n i ns t a l l a t i o n d r a w i n g s w h e n c o n v e n i e n t . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 46 ENGINEERING DRAWING STANDARDS MANUAL 4.8. Interface Control Drawing A n i n t e r f a c e c o n t r o l d r a w i n g s h a l l b e u s e d t o ma i n t a i n c o mp a t i b i l i t y o f a l l p h ys i c a l a n d f u n c t i o n a l d e s i g n s b e t w e e n d if f e r e n t e n g in e e r i n g d e s i g n a c t i v i t i e s . T h e d r a w in g s h a ll c o mmu n ic a te d e s ig n c r ite r ia s u c h a s d ime n s io n s , h o le a n d /o r b o l t s i z e s , h a r d w a r e , a n d u l t i ma t e c h a n g e s r e l a t i v e t o c o f u n c t i o n in g s y s t e ms . “Interface Control Drawing” shall be added directly above the Title block. No l i s t o f ma t e r i a l s i s p e r mi t t e d o n t h i s t y p e o f d r a w i n g ; i t i s n o t t o b e u s e d t o ma n u f a c tu r e p a r ts . S e e F ig u r e s 2 2 a , b e lo w , a n d 2 2 b o n p a g e 4 8 . R V IO E IS N D SCR TIO E IP N S M Y D TE A A PR V L P O A N TES: U LESS O O N THER ISE SPEC W IFIED 1 SU PPLIED BY XZ C R O P. 12 W TER N A LA E .004 12 x ø.281± B S C 06132 O S, T .000 23.250 ø.007 M A B C 2 TH D AW G IS N T TO IS R IN O BE USED FO FABR ATIO R IC N O IN R SPEC N. TIO 15.500 7.750 +Y .375 3.000 1.500 -B- 6.000 12.000 9.000 D LINE FOL SECTION A-A EV 24.000 R -C- +Y 23°-30' C N O BO #5 O TR L X +Z INTERFAC C N O DR ING E O TR L AW GC 7.000 ITEM R Q E 'D R Q E 'D P R N . A T O D S IP N E CR TIO M TER L A IA M TER L S E & N . A IA P C O N . O LIST O M F ATERIAL -A- U LE S O E W E SP C N S TH R IS E IFIE -D EN IO S A E IN IN E D IM S N R CH S N TIO A A R N UTIC A D A N L E O A S N TO R N ES LE A C : SP E A M IS ATIO AC D IN TR N Goddard Space Flight Center G E BE M R R EN LT, A YLA D N .XX .XXX FRACTIONS A A ±.02 ±.005 ±1° ±1/16 125 DE IG E S N R N M A E INIT D TE A D A IN INTE P ETE PE G FC 673-64-1 R W G R R D R S -X PLATFO M #5 R R O A BU R AN S A ED E R .010 O CH M EM VE LL R S D H RP G S R A FER M X. A DR W A N TITLE REF 1 FLIG HARDW E/PO FAB HARDNESS TEST REQ HT AR ST 'D HARDNESS TEST NO REQ T UIRED NO FLIG N HT TEST HARDNESS PER ASTM E-18, LO ATIO O C N PTIONAL CH C D E KE VIEWLO KIN O TBO D O G U AR TEST HARDNESS PER ASTM E-18 W ERE IN H DICATED AP O E PR V D O FIELD O DRAW N F ING THUS NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D AP O E PR V D NDE REQUIRED PER S-313-009 CO E D TH D A INGW S PR D C D U IN IS R W A O U E S G R V E AP O E -S E S PR V D TR S S FTW R O A E: V R E SIO : N GC AP O E -E G E PR V D N IN ER FILE N M : A E N X A SY E T S U ED O S N C D O E S A C LE WT SH LD LINE FO Figure 22a: Sample Interface Control Drawing X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d REVISION 1.O N TES U LESS O ER ISE SPE : N TH W CIFIED SYM DESCRIPTION DATE AP O AL PR V SU O T PO PP R STS FO AW FO TU N V LD AY R R O ER AN R O FO SH D EM VE R IPPIN . G R 101.431 W 302.00 C L 5A Ø190.00 4.00 68.524 55.162 R O EM VABLE IN LU IN C D G SU O T PP R C V S O ER TU N VER R O STR T U TR N IO U N N AXIS C V O ER Z414 Z 414 Z 400 31.839 S E VIEW ID X-673-64-1F REV 001 DEC. ‘94 1.00 43.526 65.239 SLOTTED 52.914 SP ER AC 75.914 9.388 A A D PTER M S M 104.314 FO TU N V M TIO (S O N R R O ER O N H W ) 105.314 FO TU N V EQ IPM T IN R R O ER U EN STALLA N TIO 102.314 FO S TIC S PPO T O PO TS R TA U R N S 5.00 JA K C E FOLD LIN LOAD 11.17 MPF 6.93 SP ER AC CELL 46.83 REV W 140.00 C L 5A N TE 1 O 36.361 4.39 9.562 4.00 FO P R ALLET ATTEN FR . . AN R LLER D O S Z 300.76 REF 16.17 7.00 48.00 49.013 2.072 69.75 INTERFAC C N O D A IN E O TR L R W G GC C S IPPIN 5A H G U R IN A C N U ATIO O FIG R N TU N VE R O R ITEM R D EQ R D EQ PA N . RT O DESCRIPTION MATER L IA MATER L S C & NO IA PE . N . O LIS O M T F ATE IA R L P SITIO O N UNLESS O ER IS SP TH W E ECIFIED-DIM SIO S AR IN IN ES EN N E CH NATIO L A O AU NA ER N TICS AND 47.902 Goddard Space Flight Center G EN RE BELT, M YLA AR ND 46.83 T LE A C S O R N E : SP E AD IN TR AC M IS ATION .XX .XXX FR TIO S AC N 125 N E AM INIT DATE ±.02 ±.005 ±1° ±1/16 D W G INTE RETE PER G RA IN RP D SFC-X673-64-1 DESIG R NE H G IN E R O ALL B RS A EM VE UR ND SHARP E ES R .010 O C DG R HAMFER MAX. ENGINEERING DRAWING STANDARDS MANUAL FLIG T H D AR H AR W E /PO T FA H R ESS TES R 'D S B A DN T EQ D W RA N TITLE PO T IN HA D ESS TES NO R U R N T T EQ IRED NO FLIG N HT TE H ST ARD ES PE ASTM E-18, LO A N O N S R C TIO PTIO AL N C CKE HE D TE H ST ARD ES PE ASTM E-18 W ER IND A D N S R H E IC TE O FIELD O D AW N F R ING THUS APPR ED OV 1.5 1.0 NO N N O -DESTR TIVE E UC XAM ATIO (N E) R 'D IN N D EQ APPR ED OV 17.375 ND R U E EQ IRED P S ER -313-009 C D O E TH D AW IS R ING W S PR DU D US G A O CE IN R V E APPR ED OV -STR S ES SOFTW E: AR VERS N IO : GC APPR VED O -EN INE G ER FILE N E: AM NEXT A Y SS USED ON C D O E SCALE WT SH E LD 47 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d FO LIN 48 ENGINEERING DRAWING STANDARDS MANUAL Figure 22b: Sample Interface Control Drawing Note: Format is too small. No information should appear beneath revision block or above list of material. Choose a larger format in this case. 4.9. Matched-Set Drawing A ma tc h e d - s e t d r a w in g d e p ic ts p a r ts th a t a r e ma c h in e - ma tc h e d o r o th e r w is e ma te d a n d f o r w h i c h r e p l a c e me n t a s a ma t c h e d s e t o r p a i r i s e s s e n t i a l . T h e o p e r a t i n g o r ma t i n g c h a r a c t e r i s t i c s o f t h e ma t c h e d p a r ts ( s e t ) s h a l l b e i n d i c a t e d . T h e p a r t s s h a ll b e u n iq u e ly ma r k e d w ith a s e r ia l n u mb e r id e n tif ic a tio n to in d ic a te a ma tc h e d s e t. S e e F ig u r e 2 3 ( a ll d a ta r e q u ir e d f o r th e f in is h e d d r a w in g a r e n o t s h o w n ) . T h e d r a w i n g t i t l e b e c o me s a n a s s e mb l y, a l t h o u g h t h e p a r t s a r e n o t a c t u a l l y a t t a c h e d . “ M a i n t a i n a n d F u r nis h O n ly A s A Ma tc h e d S e t” s h a ll b e a d d e d d ir e c tly above the Title block or List of Material. R V IO E IS N D S IP N E CR TIO SYM D TE A A PR V L P O A 1 GXXXXXX1 2 GXXXXXX2 3 GXXXXXX3 D LINE FOL REV LAP .00008 TO .00015 DIAMETRAL CLEAR C AN E M TAIN AN FUR ISH O LY AS A M AIN D N N ATCH SET ED GC ITEM R Q E D R Q E D P R N . A T O D SCR TIO E IP N M TER L A IA M TER L S E & N . A IA P C O N . O LIST O M F ATERIAL U LE S O E W E SP IFIE -D EN N S TH R IS EC D IM SIO S A E IN IN H S N R C E N TIO A A R N UTIC A D A N L E O A S N TO R N E : LE A C S S AC A M IS ATIO P E D IN TR N Goddard Space Flight Center G E N R E BELT, M R LA D A Y N .XX .XXX FRACTIONS 125 N M A E INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN INTE P ETED PE G FC 673-64-1 R W G R R R S -X D S N R E IG E RE O A B R S A D S R ED E R .010 O C A FER M X M VE LL U R N HA P G S R H M A . D A N R W TITLE FLIG HARDW HT ARE/PO FAB HARDNESS TEST REQ ST 'D HARDNESS TEST NO REQ T UIRED NO FLIG N HT TEST HARDNESS PER ASTM E-18, LOCATIO O N PTIONAL C E KE H C D TEST HARDNESS PER ASTM E-18 WHERE INDICATED A PR V D P O E O FIELD O DRAW N F ING THUS NO NON-DESTRUCTIVE EXAMINATIO (NDE) REQ N 'D A PR V D P O E NDE REQUIR PER S-313-009 CO ED DE TH D A IN W S PR D C D U IN IS R W G A O U E S G REV A PR V D TR SS P O E -S E S FTW R O A E: V R E SIO : N GC A PR V D N IN E P O E -E G E R FILE N M : A E N X A SY E T S U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 23: Sample Matched-Set Drawing X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 49 4.10. Mechanical Schematic A me c h a n i c a l s c h e ma t i c d ia g r a m d r a w i n g i l l u s t r a t e s t h e o p e r a t i o n a l s e q u e n c e o r a r r a n g e me n t o f a me c h a n ic a l d e v ic e . D ime n s io n s a n d r e la tiv e s iz e s o f ite ms ma y b e s h o w n to in d ic a te me c h a n ic a l r e la tio n s h ip . S e e F ig u r e 2 4 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 50 REVISION SYM DESCRIPTION DATE AP O AL PR V N TES: UN O LESS O ER IS SPEC TH W E IFIED 1. ALL D EC N AR O S IN IC IR TIO AL R W D ATE IN R C EASE IN SUPERELEVATIO . N 2. ALL GEAR 46P. S C M EN TO O P SA R 24TRI 72T D U O BLE TH R D H 27T 27T 24T 24TP R I H 36T 135T D U LE O B 64T EN Y TR 24TP LH I 24T Q AD U U R PLE 72T VE TIC L R A DEFLE TIO C N L08 R 20T M R R IR O G A S E R 90T 72T 102T R G SC LE AN E A (SP E ) ID R 53T 32P 20T 21T STOP X-673-64-1F REV 001 DEC. ‘94 G N LA IN R TIC U Y G E LE 32P 32P 45T 72T 24T LINE M T S 44T 60T LO K C 66P 105T 64P R N E KN B A G O 32P 25 L0G8R (2065 REVS .005) 21T 5 BA LLISTIC 62T 72T BA C R K O L O R N B C R E TIO O R C N E LD (80R V -.005) E S FO LIN 24T DIFFE R TIA R EN L 34T 53T 64P 36T 64P AZIM TH BO B U M SIG T K O H N B 90T 51T 32P (6M /R V 150R V LS E ) E SU ER P - 32P C U O PLING ELE TIO VA N REV DIFFE EN R TIAL 66T ELE TIO BO B VA N M SIG T K O H N B C U O PLING 88T (6M E L/R V) LINE R ER E EV S LO K C 44T 66T CAM 25 L08 8R 180T 6 AM U ITIO S M N N ELEC N K O TIO N B (91 R S .005) EV 26T 32P 20T 44T 32P 72T GC 32P TR S ITTER AN M ITEM R 'D EQ R 'D EQ PA N . RT O DESCRIPTION MATERIAL MATERIAL SPEC & N . O BALLISTIC C M A NO. LIS O M TE IA T F A R L Figure 24: Sample Mechanical Schematic G AR S M T 66T E EG EN UNLE O ERW SS TH ISE SPECIFIED IM NS NS A IN INC S -D E IO RE HE 65L0G 8R NATION A AL ERO AU S AN N TIC D Goddard Space Flight Center G EN RE BELT, M YLA AR ND TO R N E : LE A C S SP E AD IN TRA N AC M IS TIO 46 .XX .XXX FR TIO AC NS 125 N E AM INIT DATE .02 .005 .1 .1/16 DRAW G IN RPRE IN TE TED P G ER SFC-X673-64-1 DESIGNER R OV ALL BU RS AN SHAR ED ES R .010 O C AM EM E R D P G R H FER MAX. ENGINEERING DRAWING STANDARDS MANUAL DRAWN TITLE FLIG H D ARE HT AR W /PO T FA H DN SS TEST R 'D S B AR E EQ H RD ESS TES N T R U ED A N T O EQ IR N N FLIG T O H TE H D ST AR NES PER A S STM E-18, LO ATIO O C N PTIO AL N CHECKED TE H D ST AR NES PER A S STM E-18 W ERE IN IC H D ATED AP O PR VED O FIE O D W G TH S N LD F RA IN U N N N-D STR CTIV EX INA N (N E R Q O O E U E AM TIO D ) E 'D AP O PR VED N E R U ED PE S-313-009 CO D EQ IR R DE TH D W G W S PR UC U IS RA IN A OD ED SING R V E AP O PR VED-STRESS SOFTW E: AR VE IO : RS N GC AP O PR VED-ENG ER INE FILE N E: AM NEXT ASSY USED ON C D O E SCALE WT SH E LD G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d FO LIN ENGINEERING DRAWING STANDARDS MANUAL 51 4.11. Modification Drawing Mo d if ic a tio n d r a w in g s d e lin e a te c h a n g e s to d e liv e r e d ite ms , s to c k a b le ite ms ( e . g . , S ta n d a r d P a r t D r a w in g o f h o n e yc o mb p a n e l b la n k s ) , a s s e mb lie s , in s ta lla tio n s , o r s ys te ms . D r a w in g s a r e p r e p a r e d to a d d , r e mo v e , o r r e w o r k ite ms , e q u ip me n t i n s t a l l a t i o n s , o r s y s t e ms t o s a t i s f y t h e u s i n g a c t i v i t y ' s r e q u ir e me n ts . T h e y a l s o i n c o r p o r a t e ma n d a t o r y c h a n g e s ( e . g . , s a f e t y , r e l i a b i l i t y , o r a p p l i c a t i o n e x t e n s i o n ) in d e liv e r e d e q u ip me n t. A mo d if ic a tio n d r a w in g s h a ll b e id e n tif ie d b y th e w o r d s “ M o d i f i c a t i o n D r a w i n g ” i mme d i a t e l y a b o v e t h e T i t l e b l o ck . T h i s t y p e o f d r a w i n g h a s a ls o b e e n k n o w n o r r e f e r r e d to a s a “ Ma k e F r o m D r a w in g . ” 4.12. Outline Drawing A n o u t l i n e d r a w i n g i s a d r a w i n g t h a t d e f i n e s t h e e x t e r n a l c o n to u r o f a n i t e m, u s u a lly b y s h o w in g th e p r o j e c te d v ie w s in tw o o r th r e e p e r p e n d ic u la r p la n e s . T w o t y p e s o f o u t l i n e d r a w i n g s a r e d e p ic t e d i n F i g u r e s 2 5 a , b e l o w , a n d 2 5 b o n page 52. 15MM AXIMUM APPR X 3M O SPAC R EC AFT AN TELESC PE D O PAM-A SECTION 3M SOLAR AR AY STO ED R W ATTITU E C N O D O TR L TH USTER R S STAR TR KER AC DATA ANTEN A N DATA ANTEN A N APO EE R C G O KET M TO O RS SU SH E SH W STO ED N AD O N W APPR X 1M D O IA TELESC PE O O TLIN O SH TTLE U E F U STO ED IN SH TTLE BAY FO PAM LAUN W U R -A CH PAYLO EN AD VELO PE Figure 25a: First Sample Outline Drawing X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 52 ENGINEERING DRAWING STANDARDS MANUAL SH TTLE TR SP R U AN O TATIO S N YSTEM C BE O PAYLO AD SATELLITE INSTALLATION +Z Looking out of the plane of paper 576.00 584.00 207.06 186.00 SOLAR ARR PAN AY ELS 760.50 -Y +Y 943.50 96.68 217.22 1069.00 SPAC R EC AFT LEN TH G 1108.33 1123.50 1305.50 1307.00 +X Looking aft Figure 25b: Second Sample Outline Drawing X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 53 4.13. Source Control Drawing A s o u r c e c o n tr o l d r a w in g s h a ll b e u s e d to limit p r o c u r e me n t o f a v e n d o r - d e s ig n e d a n d ma n u f a c tu r e d p a r t ( o r a s s e mb ly) to th a t s o u r c e o r s o u r c e s t h a t e x c l u s i v e l y p r o v id e th e p e r f o r ma n c e , in s ta lla tio n , a n d i n t e r c h a n g e a b l e c h a r a c t e r i s t i c s o f t h e p a r t s e le c te d a n d te s te d f o r a s p e c if ic a p p lic a tio n . I n th e e v e n t th e v e n d o r s h a ll n o t p r o v id e d r a w in g s a s d e s c r ib e d in p a r a g r a p h 4 . 1 4 . d o n p a g e 5 6 , th e s o u r c e c o n tr o l d r a w in g s h a ll in c lu d e th e s a me d e s c r ip tio n o f th e p a r t a s r e q u ir e d o n s p e c if ic a tio n c o n tr o l d r a w in g s . I f v e n d o r d r a w in g s a r e ma d e a v a ila b le , th e c o n te n t o f th e s o u r c e c o n tr o l d r a w in g s h a ll b e limite d to v e n d o r 's p a r t n u mb e r , n a me , a n d a d d r e s s . I n e i t h e r c a s e , t he f o llo w in g n o te s h a ll a p p e a r o n th e s o u r c e c o n tr o l d r a w in g : “ O n ly th e p a r t( s ) s p e c if ie d o n th is d r a w in g a n d id e n tif ie d b y v e n d o r 's n a me ( s ) , a d d r e s s ( e s ) , a n d p a r t n u mb e r ( s ) h a s ( h a v e ) b e e n te s te d a n d a p p r o v e d b y G S F C f o r u s e i n n a me o f i t e m. A s u b s t i t u t e p a r t s h a l l n o t b e u s e d w ith o u t p r io r te s tin g a n d a p p r o v a l b y G S F C. ” S e e F ig u r e 2 6 . R V IO E IS N D S IP N E CR TIO S M Y D TE A A PR V L P O A N TES: U LESS O O N THER ISE SPEC W IFIED 1. O LY TH PAR SPEC N E T IFIED O TH D N IS RAW G AN IN D ID TIFIED BY VEND R N E, AD ESS AN PART EN O 'S AM DR D N M U BER H BEEN TESTED AN APPR VED BY G AS D O SFC FO U IN M D XYZ. A SU R SE O EL BSTITU PAR SH TE T ALL N T BE U O SED W O T PR R TESTIN AN APPR VAL ITH U IO G D O BY GSFC. 2. APPR VED SO R O U CE: JO ES M . C ., N FG O STREET AD R D ESS, C IC O IL H AG , PAR N M T U BER XX3-X4XX LD LINE FO R V E SO RC C NTR L D U E O O RAW G IN GC ITEM R Q E D R Q E D PA T NO R . DE CR S IPTION M TER L A IA M TER L S E & N . A IA P C O N . O LIST O M F ATER L IA U LE S O E W E SP C N S TH R IS E IFIED IM S N A E IN IN H S -D EN IO S R C E NATIO A A O A N L ER N UTIC A D S N TO R N ES LE A C : S ACE A M IS ATIO P D IN TR N Goddard Space Flight Center G E N LT, M R LA D R E BE A Y N .XX .XXX FRACTIONS 125 N M A E INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN INTE P ETE PER G FC 673-64-1 R W G R R D S -X D S N R E IG E R M V A B R S A D S A P ED E R .010 O C A FER M X E O E LL U R N H R G S R H M A . D A N R W TITLE FLIG HARD ARE/PO FAB HARD HT W ST NESS TEST REQ'D HARDNESS TEST N T REQ O UIRED NO FLIG N HT TEST HARDNESS PER ASTM E-18, LOCATIO O N PTIONAL C E KED H C TEST HARDNESS PER ASTM E-18 WHERE INDICATED A PR VE P O D O FIELD O DRAW N F ING THUS N NO O N-DESTRUCTIVE EXAMINATION (NDE) REQ'D A PR VE P O D NDE REQUIRED PER S-313-009 CODE TH D AW G W S PR D C D U IN IS R IN A O U E S G REV A PR VE -S E S P O D TR S S FTW R O A E: V SIO : ER N GC A PR VE -E G E R P O D N IN E FILE N M : A E N XT A E SSY U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 26: Sample Source Control Drawing a. T h e s o u r c e c o n tr o l d r a w in g n u mb e r is n o t a p a r t n u mb e r . T h e v e n d o r p a r t its e lf s h a ll b e id e n tif ie d b y th e v e n d o r 's id e n tif yin g n u mb e r . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 54 ENGINEERING DRAWING STANDARDS MANUAL b . T h e a s s e mb ly ( o r in s ta lla tio n ) d r a w in g s h a ll c a ll o u t th e p a r t b y s o u r c e c o n tr o l d r a w in g n u mb e r . I n th e L is t o f Ma te r ia l ( p a r ts lis t) o f th e d r a w in g , th e s o u r c e c o n t r o l d r a w i n g n u mb e r s h a l l b e a c c o mp a n i e d b y t h e f o l l o w i n g n o t e : “ V e n d o r P a r t— s e e s o u r c e c o n tr o l d r a w in g . ” A s o u r c e c o n tr o l d r a w in g s h a ll b e i d e n t i f i e d b y t h e w o r d s “ S o u r c e C o n t r o l D r a w i n g ” i mme d i a t e l y a b o v e t h e T i t l e b lo c k . c. A s o u r c e c o n tr o l d r a w in g s h a ll n o t u p g r a d e a v e n d o r 's p a r t b e yo n d th e v e n d o r 's s tip u la tio n s . 4.14. Specification Control Drawing Specification control drawings are prepared to record the characteristics of a v e n d o r - d e s ig n e d a n d ma n u f a c tu r e d p a r t ( o r a s s e mb ly) . T h is typ e o f d r a w in g ma y a ls o b e u s e d to d o c u me n t G S F C p a r ts th a t a r e s e n t to a u n iq u e v e n d o r to p e r f o r m a s p e c i f i c o p e r a t i o n b e c a u s e o f s p e c i a l eq u i p me n t a n d / o r h a r d w a r e o n l y a v a i l a b l e t h e r e . S u c h c h a r a c t e r i s tic s a r e s iz e , s h a p e , mo u n tin g d ime n s io n s , a n d o th e r d e s ig n r e q u ir e me n ts , in c lu d in g te s ts , w h e n a p p lic a b le , th a t c o u ld b e o b ta in e d f r o m th e v e n d o r 's ma n u f a c tu r in g d r a w in g s if th e y w e r e ma d e a v a ila b le . T h e v e n d o r 's p a r t n u mb e r , n a me , a n d a d d r e s s s h a ll b e in c lu d e d , e ith e r in n o te o r ta b le f o r m. S e e F ig u r e 2 7 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 55 R V IO E IS N D S IP N E CR TIO SYM D TE A A PR V L P O A V D RN M & A D E S EN O A E D R S V N O P R N . E D R A T O S ITH E G E R G C M A Y M N IN E IN O P N XA3-X29XX B F LO N U FA . .Y. P O U T N TE T P O E U E R D C IO S R C D R WITH P R 3 O T P R IS IB LE K G E M S LE A A E P G ED A P LU G P LY A R TE O T A F C M E TS O MN P E S R A R S U E S FOLLO S W IN R A TE N L E ER A XT N L 5 PS A I T 1 D O P RH R P E R P R 1 O T N N O E P R 2 O T A P R 1 T O T S O LD BE H LD H U E B S R TH T E U E A D W D R G O N U IN S A GPO P T E LIN P E 2250 P I S N N O E N N O E T E E TE S H S ST IS LO S IN O E A P R 2 T O T A P R 1 T O T V LV W E A E H N 5P I A S T 1 D O P RH R P E R P R 2 O T E C TE T A H S N N O E P R 1 O T A P R 1 T O T S O LD BE H LD H U E P E S R R S U E D W D R G O N U IN IS A PLIE P D 2250 P I S N N O E N N O E T E E TE S H S ST A P R 1 T O T A P R2 T O 3X .438-20 U F-3B N FO .25 O TU G R D BIN D LINE FOL PER AND 10050 3 PLAC ES REV PO T 2 R 1.250 PO T 1 R SPECIFICATIO CO TRO D AW G N N L R IN C PO T 3 R G 1.190 ø 2X .020 ITEM R D EQ RE D Q P R N . A T O D SCR TIO E IP N MATER L IA M TER L S E & N . A IA P C O N . O LIST O M F ATERIAL 2.380 U LE S O E W E SP IFIE -D EN N S TH R IS EC D IM SIO S A E IN IN H S N R C E N TIO A A R N UTIC A D A N L E O A S N TO R N E : LE A C S S AC A M IS ATIO P E D IN TR N Goddard Space Flight Center G E N R E BELT, M R LA D A Y N .XX .XXX FRACTIONS 125 N M A E INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN INTE P ETE PE G FC 673-64-1 R W G R R D R S -X D S N R E IG E RE O A B R S A D S R ED E R .010 O C A FER M X M VE LL U R N HA P G S R H M A . D A N R W TITLE FLIG HARDW HT ARE/PO FAB HARDNESS TEST REQ ST 'D HARDNESS TEST NO REQ T UIRED NO FLIG N HT TEST HARDNESS PER ASTM E-18, LOCATIO O N PTIONAL C E KE H C D TEST HARDNESS PER ASTM E-18 WHERE INDICATED A PR V D P O E O FIELD O DRAW N F ING THUS NO NON-DESTRUCTIVE EXAMINATIO (NDE) REQ N 'D A PR V D P O E NDE REQUIRED PER S-313-009 CODE TH D A IN W S PR D C D U G IS R W G A O U E SIN REV A PR V D TR SS P O E -S E S FTW R O A E: V R E SIO : N GC A PR V D N IN E P O E -E G E R FILE N M : A E N X A SY E T S U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 27: Sample Specification Control Drawing a. T h e s p e c if ic a tio n c o n tr o l d r a w in g n u mb e r is n o t a p a r t n u mb e r . T h e v e n d o r p a r t its e lf s h a ll b e id e n tif ie d b y th e v e n d o r 's id e n tif yin g n u mb e r . b . T h e a s s e mb l y ( o r i n s t a l l a t i o n ) d r a w i n g s h a l l c a l l o u t t h e p a r t b y t h e s p e c if ic a tio n c o n tr o l d r a w in g n u mb e r . I n th e L is t o f Ma te r ia l ( p a r ts lis t) o f t h e d r a w i n g , t h e s p e c i f i c a t i o n c o n t r ol d r a w i n g n u mb e r s h a l l b e a c c o mp a n i e d b y th e n o te “ V e n d o r P a r t— s e e s p e c if ic a tio n c o n tr o l d r a w in g . ” A s p e c if ic a tio n c o n tr o l d r a w in g s h a ll b e id e n tif ie d b y th e w o r d s “ S p e c if ic a tio n Co n tr o l D r a w i n g ” i mme d i a t e l y a b o v e t h e T i t l e b l o c k . c . A s p e c i f i c a t i o n c o n tr o l d r a w i n g d o e s n o t p r e v e n t p r o c u r e me n t f r o m mu l t i p l e s o u r c e s w h e n th e v e n d o r p a r t h a s b e e n d e te r min e d to b e e q u iv a le n t to o th e r v e n d o r p a r t s b y t h e F e d e r a l C a t a l o g in g P r o g r a m, r e s u l t i n g i n F e d e r a l I t e m I d e n tif ic a tio n N u mb e r ( F I I N ) n u mb e r a s s ig n me n t o r w h e n th e p a r t is ma n u f a c tu r e d b y a lic e n s e e o f th e v e n d o r . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 56 ENGINEERING DRAWING STANDARDS MANUAL d . T h e p r e p a r a tio n o f s p e c if ic a tio n c o n tr o l d r a w in g s c a n b e a v o id e d b y p r o c u r in g th e v e n d o r 's ma n u f a c tu r in g d r a w in g s . I n th e e v e n t th e v e n d o r c la ims p r o p r ie ta r y r ig h ts a n d r e f u s e s to p r o v id e h is ma n u f a c tu r in g d r a w in g s , h e s h a ll b e r e q u e s t e d t o f u r n i s h a n o u t l i n e d r a w i n g o f h is p a r t s u f f i c i e n t t o i n c l u d e t h e r e q u ir e me n ts s ta te d a b o v e . W h e n th e v e n d o r p r o v id e s e ith e r typ e o f d r a w in g s ( i . e . , ma n u f a c t u r i n g d r a w i n g s o r a n o u t l i n e d r a w i n g ) , t h e p a r t n u mb e r c a l l o u t o n th e d r a w in g s h a ll b e b y th e v e n d o r 's n u mb e r . e. A s p e c if ic a tio n c o n tr o l d r a w in g s h a ll n o t u p g r a d e a v e n d o r 's p a r t b e yo n d th e v e n d o r 's s tip u la tio n s . 4.15. Standard Part Drawing S ta n d a r d p a r ts s h a ll b e s e le c te d f r o m g o v er n me n t a n d in d u s tr y s ta n d a r d s in th a t order of precedence. If neither of these contain a part satisfactory for the design n e e d s , a d r a w i n g s h a l l b e p r e p a r e d . B e f o r e p r e p a r a tio n , it mu s t b e d e te r min e d th a t th e p a r t s h a ll b e a G S F C s ta n d a r d p a r t, in w h ic h c a s e it s h a ll b e d r a f te d o n G S F C s ta n d a r d ma n u a l f o r ma t. 4.16. Tabulated Drawing A ta b u la te d d r a w in g d e p ic ts s imila r ite ms w i t h d i f f e r e n c e s i n c h a r a c t e r i s t i c s s u c h a s d ime n s io n s , ma te r ia l, f in is h , a n d o th e r r e q u ir e me n ts . T h e s e d if f e r e n c e s a r e ta b u la te d o n th e d r a w in g , th e f ix e d c h a r a c t e r i s t i c s d e p i c t e d o n c e . P ic to r ia l d if f e r e n c e s th a t a r e n o t c le a r s h o u ld b e s h o w n in v ie w s o r d e ta ils a n d s h o u ld b e p r o p e r ly la b e le d . A ta b u la te d d r a w in g p r e c lu d e s th e p r e p a r a tio n o f a n i n d i v i d u a l d r a w i n g f o r e a c h i t e m. S e e F i g u r e 2 8 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 57 R V IO E IS N D S IP N E CR TIO SYM D TE A A PR V L P O A N TES: O U LESS O ER ISE SPE IFIED N TH W C 1. PASSIVATE PER Q -P-35, TYPE II Q 2. BAG PART PER MIL-P-116, METHOD III, AN TAG W D ITH PART N M U BER G 1234567. C A B 2X R .31 ø1.360 A ø3.265 .020 A ø3.95 ø.953 .020 A D LINE FOL .003 A REV 2X R .31 G 1234567 C BAR C ES R ASTM A582 /303 CO D A N TA LE I B ITEM R D EQ RE D Q P R N . A T O D SCR TIO E IP N MATER L IA M TER L S E & N . A IA P C O N . O LIST O M F ATERIAL U LE S O E W E SP IFIE -D EN N S TH R IS EC D IM SIO S A E IN IN H S N R C E N TIO A A R N UTIC A D A N L E O A S N P R N . A T O D .A IM D .B IM TO R N E : LE A C S S AC A M IS ATIO P E D IN TR N Goddard Space Flight Center G E N R E BELT, M R LA D A Y N .XX .XXX FRACTIONS 125 N M A E INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN INTE P ETED PE G FC 673-64-1 R W G R R R S -X D S N R E IG E G X X X 5-1 C X X X 3.500 1.250 R O A B R S A D S AR EDG R .010 O C A FER M X EM VE LL U R N H P ES R H M A . D A N R W TITLE FLIG HARDW HT ARE/PO FAB HARDNESS TEST REQ ST 'D HARDNESS TEST NO REQ T UIRED NO FLIG N HT C U O PLER G X X X 5-3 C X X X 3.625 1.375 TEST HARDNESS PER ASTM E-18, LOCATIO O N PTIONAL C E KE H C D TEST HARDNESS PER ASTM E-18 WHERE INDICATED A PR V D P O E O FIELD O DRAW N F ING THUS NO NON-DESTRUCTIVE EXAMINATIO (NDE) REQ N 'D A PR V D P O E NDE REQUIRED PER S-313-009 CODE TH D A IN W S PR D C D U G IS R W G A O U E SIN REV A PR V D TR SS P O E -S E S FTW R O A E: V R E SIO : N GC 1234567 A PR V D N IN E P O E -E G E R FILE N M : A E N X A SY E T S U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 28: Sample Tabulated Drawing 4.17. Tooling Drawing T o o lin g f ix tu r e s a n d te mp la te s a r e p r o d u c tio n a id s . T h e te mp la te s a r e n o t in te n d e d a s e n g in e e r in g d o c u me n ta tio n o f th e f in a l e n d ite m c o n f ig u r a tio n . T h e e n g in e e r in g d r a w in g f o r w h ic h a T o o lin g d r a w in g is b e in g p r o d u c e d s h a ll c a r r y th e f o llo w in g n o te : THESE FEATURES ARE TO BE INSTALLED USING TOOLING TEMPLATE GX-XXXXXXX ONLY. THE ACTUAL TOLERANCES ON THE FEATURES LOCATIONS ARE CONTROLLED BY THE TEMPLATE. W h e n a f f e c te d b y to o lin g , d ime n s io n s a n d th e ir to le r a n c e s s h a ll b e f la g g e d o n th e e n g in e e r in g d r a w in g to th e a b o v e n o te a n d e n c lo s e d in p a r e n th e s e s to in d ic a te r e f e r e n c e i n f o r ma t i o n o n l y. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 58 ENGINEERING DRAWING STANDARDS MANUAL T h e f o llo w in g n o te s h a ll b e a d d e d to th e to o lin g d r a w in g : THIS TOOLING IS USED TO FABRICATE PIECE PART GX-XXXXXXX. T h e to o lin g d r a w in g s h a ll b e d ime n s io n e d th e s a me w a y a s th e e n g in e e r in g d r a w in g . 4.18. Composite Material Drawing A c o mp o s ite ma te r ia l d r a w in g is a n e n g in e e r in g r e p r e s e n ta tio n o f tw o o r mo r e ma t e r i a l s i n c o mb i n a t i o n ( r e i n f o r c i n g f ib e r s a n d r e s in b in d e r ) . T h e f ib e r a n d r e s in d if f e r in f o r m o r c o mp o s itio n , a n d a r e ta ilo r e d to me e t s p e c if ic e n g in e e r in g p r o p e r t i e s . T h e d r a w i n g s h a l l s p e c i f y t h e mu l t i - p ly l a min a t e c o n f i g u r a t i o n t h a t d e f in e s th e n u mb e r o f p lie s , th e s ta c k in g s e q u e n c e , th e p ly a n g le o r ie n ta tio n , th e p r e p r e g f i b e r - r e s i n ma t e r i a l s , a n d t h e p h ys i c a l d i me n s i o n s . F o r th e f o llo w in g r e q u ir e me n ts , r e f e r to F ig u r e 2 9 a s a n e x a mp le o f a c o mp o s ite ma te r ia l d r a w in g . a. A c o o r d in a te r e f e r e n c e a n d a n g le d ire c tio n s h a ll b e s h o w n f o r b o th th e p a r t and the stacked detail. b . E a c h p ly s h a ll b e id e n tif ie d b y I te m N o . , a n g le , a n d th ic k n e s s , a s s h o w n in T a b le 1 o f F ig u r e 2 9 . c. D a s h n u mb e r s ma y b e u s e d to s h o w v ar ia tio n s , s u c h a s le n g th a n d ma te r ia l, a s s h o w n in T a b le 2 o f F ig u r e 2 9 . d . S ta c k in g s e q u e n c e c o d e ( + 3 0 /0 /- 3 0 /9 0 ) 2 S , a s s h o w n in T a b le 1 in F ig u r e 2 9 d e f in e s th e f o llo w in g f e a tu r e s : P ly 1 + 3 0 - d e g r e e o r ie n ta tio n P ly 2 0 - d e g r e e o r ie n ta tio n P ly 3 - 3 0 - d e g r e e o r ie n ta tio n P ly 4 + 9 0 - d e g r e e o r ie n ta tio n Subscript “2” in d ic a te s r e p e a t s e q u e n c e ( p lie s 1 – 4 ) tw o time s , f o r b u ild u p o f p lie s 5 – 8 . Subscript “S” in d ic a te s s ymme tr y, i. e . , p lie s 1 – 8 r e p e a te d in r e v e r s e o r d e r f o r b u ild u p o f p lie s 9 – 1 6 . T h e c o d e is r e a d ( + 3 0 /0 /- 3 0 /9 0 /+ 3 0 /0 /- 3 0 /9 0 /9 0 /- 3 0 /0 /+ 3 0 /9 0 /- 3 0 /0 /+ 3 0 ) . E x a mp le s o f o th e r v a r ia tio n s to th e c o d e a r e ( 0 3 /9 0 2 /4 5 /- 4 5 3 ) S . T h i s c o d e i s r e a d ( 0 /0 /0 /9 0 /9 0 /+ 4 5 /- 4 5 /- 4 5 /- 4 5 /- 4 5 /- 4 5 /- 4 5 /+ 4 5 /9 0 /9 0 /0 /0 /0 ) . I n t h e s a me e x a mp l e , t h e s u b s c r i p t “ T ” c a n b e u s e d in lie u o f “ S ” to d e s ig n a te th e t o t a l l a min a t e . F o r e x a mp le , ( 0 3 /9 0 2 /4 5 /- 4 5 6 /4 5 /9 0 2 /0 3 ) T . H o w e v e r , i n t h i s e x a mp le , u s in g th e “ S ” to d e n o te s ymme tr y is th e p r e f e r r e d me th o d . “ T ” is g e n e r a l l y r e s e r v e d f o r l a min a t e s w h e r e s y mme t r y i s n o t s p e c i f i e d , a s i n ( 0 /3 0 /6 0 /9 0 ) T . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 59 Figure 29: Composite Material Drawing Example X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 60 ENGINEERING DRAWING STANDARDS MANUAL 5. NUMBERING SYSTEM FOR DRAWINGS AND SUPPORTING DOCUMENTATION T h e G S F C n u mb e r in g s ys te m f o r id e n tif yin g e n g in e e r in g d r a w in g s a n d a s s o c ia te d lis ts is b a s e d o n th e “ u n it n u mb e r ” p r in c ip le , w h e r e b y th e s a me b a s ic n u mb e r a s s ig n e d to a n a s s e mb ly d r a w in g is a ls o a p p lie d to in d e x , u s a g e , d a ta , a n d p a r ts lists. a. D r a w in g n u mb e r s s h a ll c o n s is t o f a s s ig n e d b a s ic s e v e n - d ig it n u mb e r s , p r e f ix e d b y th e le tte r “ G ” ( s ig n if yin g G S F C) a n d a s e c o n d le tte r s ig n if yin g th e drawing size (B, C, D, E, F, or J). b . A s s o c ia te d lis t n u mb e r s s h a ll b e th e b a s ic s e v e n - d ig it d r a w in g n u mb e r p r e f ix w i t h P L o r I L a s a p p l i c a b l e . R e f e r to D e f in itio n s p a r a g r a p h 8 . 1 o n p a g e 7 1 . c. A ll G S F C o r g a n iz a tio n s u s in g d r a w in g n u mb e r s s h a ll ma k e th e ir r e q u e s t to th e M e c h a n i c a l S y s t e ms D i v i s io n , M e c h a n i c a l E n g i n e e r in g Br a n c h ( d e s ig n a te d c u s to d ia n ) f o r b lo c k s o f n u mb e r s f o r th e ir f lig h t h a r d w a r e a n d g r o u n d s u p p o r t e q u ip me n t. d . T h e ma n a g e me n t o f d r a w i n g n u mb e r s b e c o me s t h e r e s p o n s i b i l i t y o f t h e e n g in e e r in g d e s ig n g r o u p to w h o m th e y a r e a s s ig n e d . Re a s s ig n me n t o f th e n u mb e r s to g r o u p s u b s e c tio n s o r in d iv id u a ls , o th e r c o n tr a c to r s o r s u b c o n tr a c to r s , o r o th e r p r o g r a ms o r p r o j e c ts mu s t b e c o n tr o lle d , r e c o r d e d , a n d ma in ta in e d b y th e Co n f ig u r a tio n Ma n a g e me n t O f f ic e r . e. E n g in e e r in g d o c u me n ta tio n ( d r a w in g s, e n g in e e r in g c h a n g e o r d e r s , a n d c o n f ig u r a tio n c h a n g e r e q u e s ts ) s h a ll b e r e ta in e d b y th e Co n f ig u r a tio n Ma n a g e r i n t h e r e s p o n s i b l e e n g i n e e r i n g o r g a n iz a t i o n u n t i l o t h e r w i s e d i r e c t e d b y t h e Project. f. W h e n i t i s n e c e s s a r y t o i d e n t i f y a d ra w i n g a s a s k e t c h , t h e n u mb e r s h a l l b e a s s i g n e d b y t h e o r i g i n a t o r . T h e s k e t c h s h a l l b e ma i n t a i n e d b y t h e o r i g i n a t o r t o p r e v e n t t h e n e c e s s i t y o f a c e n t r a l c o n t r o l . S k e t c h e s s h a ll n o t b e p r e p a r e d in p l a c e o f e n g i n e e r i n g d r a w i n g s f o r p r o c u r e me n t o f mo c k u p s , mo d e l s , p r e p r o d u c tio n h a r d w a r e o r f lig h t h ar d w a r e , a n d a s s o c ia te d e q u ip me n t. g . G S F C n u mb e r s f o r s p e c if ic a tio n s , p r o c e s s e s , a n d s t a n d a r d s s h a l l b e i s s u e d b y th e s p e c if ic o r g a n iz a tio n f o r w h ic h s u c h d o c u me n ts a r e b e in g d e v e lo p e d . P r o c e d u r e s g o v e r n in g th e p r e p a r a tio n o f G S F C s p e c if ic a tio n s , p r o c e s s e s , a n d standards shall be in accordance with GSFC-S-250-3, Guide for the P r e p a r a t i o n o f S p e c i f i c a t i o n s. T h e L i b r a r y S e r v i c e s B r a n c h o f t h e G S F C I n f o r ma t i o n M a n a g e me n t D iv i s i o n s h a l l r e c e i v e t w o co p i e s o f f i n a l , a p p r o v e d d o c u me n ts th a t a r e o f g e n e r a l in te r e s t a n d u s e . A lis t o f e x is tin g s p e c i f i c a t i o n s i s ma i n t a i n e d b y t h e L i b r a r y S e r v i c e s B r a n c h . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 61 h . I n th e a b s e n c e o f a p r o j e c t- d ir e c te d d o c u me n t n u mb e r in g p la n , th e f o llo w in g system shall be used: GSFC - S - 722 - 93 - 002 - A revision letter ordinal specification number issued in given year year of specification issue Branch, Division or organization issuing & maintaining specification "S" for specification, "P" for procedure Goddard Space Flight Center 5.1. Part Numbering E a c h d e t a i l p a r t , s u b a s s e mb l y , e t c . , s h all b e id e n tif ie d b y a p a r t n u mb e r a s follows: a. A n ite m c o v e r e d b y a n a p p r o v e d s tan d a r d a n d u s e d w ith o u t a lte r a tio n o r s e l e c t i o n s h a l l b e i d e n t i f i e d b y t h e p r o p e r s ta n d a r d n u mb e r ( s u c h a s MS n u mb e r f o r mi l i t a r y s t a n d a r d ) , w h i c h s h a l l i n c l u d e a n y d a s h n u mb e r o r c o d e n e c e s s a r y f o r c o mp l e t e i d e n t i t y . b . E a c h n o n s ta n d a r d ite m s h a ll b e id e n tif ie d b y a p a r t n u mb e r th a t s h a ll b e , o r s h a ll in c lu d e , th e d r a w in g n u mb e r . c. V e n d o r - d e s ig n e d a n d ma n u f a c tu r e d p a r ts o r a s s e mb lie s s h a ll b e id e n tif ie d b y th e v e n d o r 's p a r t n u mb e r . S e e “ S p e c if ic a tio n Co n tr o l D r a w in g , ” p a r a g r a p h 4 . 1 4 o n p a g e 5 4 , a n d “ S o u r c e Co n tr o l D r a w in g , ” p a r a g r a p h 4 . 1 3 o n p a g e 5 3 . d . A lte r e d o r s e le c te d p a r ts s h a ll b e id e n tif ie d a s r e q u ir e d . S e e “ A lte r e d o r S e le c te d V e n d o r P a r t D r a w in g , ” p a r a g r a p h 4 . 1 o n p a g e 3 9 . e. S ymme tr ic a lly o p p o s ite p a r ts s h a ll b e d e s ig n a te d b y - 1 ( s h o w n ) a n d - 2 ( o p p o s i t e ) c a r r y i n g t h e o d d / e v e n r e l a t i o n s h i p t o h i g h e r n u mb e r s a s n e c e s s a r y . T h e p a r t s h o w n s h a ll a lw a ys b e a n o d d n u mb e r , a n d its o p p o s ite , th e n e x t h ig h e r n u mb e r . P a r ts s h a ll b e id e n tif ie d o n th e f ie ld o f d r a w in g b y s h o w in g b o th th e id e n tif yin g p a r t n u mb e r a n d f in d n u mb e r w h e r e c r o s s - r e f e r e n c e d o n a s e p a r a te E n g in e e r in g P a r ts L is t. S e e “ S a mp le A s s e mb ly D r a w in g , ” F ig u r e 1 7 o n p a g e 4 0 . W h e n th e p a r ts a p p e a r in th e L is t o f Ma te r ia l o n th e d r a w in g , o n ly th e ite m n u mb e r is c a lle d o u t o n th e f ie ld o f th e d r a w in g . S e e F ig u r e 3 4 , “ S a mp le A s s e mb ly D r a w in g W ith L is t o f Ma te r ia l, ” o n p a g e 8 0 . A d e ta il d r a w in g d e p ic ts a s in g le d e ta il p a r t, a n d th e p a r t s h a ll b e d e s ig n a te d b y th e d r a w in g n u mb e r . S e e “ D e ta il D r a w in g , ” p a r a g r a p h 4 . 3 o n p a g e 4 1 . A n in s e p a r a b le a s s e mb ly d r a w in g d e p ic ts p a r t s p e r ma n e n t l y f a s t e n e d t o g e t h e r , a n d th e a s s e mb ly s h a ll b e d e s ig n a te d b y th e d r a w in g n u mb e r . T h e in d iv id u a l p a r ts s h a ll b e d e s ig n a te d b y p a r t n u mb e r a s d e s c r ib e d p e r “ I n s e p a r a b le A s s e mb ly D r a w in g , ” p a r a g r a p h 4 . 6 o n p a g e 4 4 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 62 ENGINEERING DRAWING STANDARDS MANUAL E a c h o f th e p a r ts s h o w n o n a ta b u la te d d r a w in g s h a ll b e id e n tif ie d b y th e d r a w in g n u mb e r s u f f ix e d w ith a d a s h n u mb e r . T h e b a s ic d r a w in g n u mb e r a lo n e s h a ll n o t b e u s e d t o i d e n t i f y a p a r t . S e e “ T a b u la te d D r a w in g , ” p a r a g r a p h 4 . 1 6 o n p a g e 5 6 . P a r t s t h a t mu s t b e ma t e d , a n d f o r w h i c h r e p l a c e me n t a s a ma t c h e d s e t o r p a i r i s r e q u i r e d , s h a l l b e a s s i g n e d a s i n g l e n u mb e r t o d e s i g n a t e e a c h ma t c h e d s e t o r p a i r . Co mp o n e n t p a r ts s h o w n in ma tc h e d - s e t d r a w in g s in s te a d o f s e p a r a te d e ta il d r a w in g s s h a ll b e id e n tif ie d b y th e id e n tif yin g p a r t n u mb e r a n d f in d n u mb e r . S e e “ Ma tc h e d - S e t D r a w in g , ” p a r a g r a p h 4 . 9 o n p a g e 4 8 . 5.2. Find or Item Numbering U n d e r th e f in d o r ite m n u mb e r in g s ys te m, a n u mb e r is a s s ig n e d to a p a r t o r d e ta il a s s e mb l y f o r t h e p u r p o s e o f l o c a t i n g i t i n t h e f i e l d o f t h e a s s e mb l y d r a w i n g . T h e f in d o r ite m n u mb e r is a ls o s h o w n in th e E n g in e e r in g P a r ts L is t f o r a n a s s e mb ly d r a w in g , c r o s s - r e f e r e n c e d to th e p a r t n u mb e r u s e d f o r p r o c u r e me n t p u r p o s e s . 5.3. Order of Precedence of Specifications and Standards W h e n i d e n t i c a l p a r t s o r a s s e mb l i e s o f e q u a l q u a l i t y a r e i d e n t i f i e d b y mo r e t h a n o n e d o c u me n t, th e ite m s h a ll b e r e f e r e n c e d o n d r a w in g s in th e f o llo w in g o r d e r : 5.3.1. Group I G r o u p I c o v e r s g o v e r n me n t s p e c if ic a tio n s a n d s ta n d a r d s lis te d f o r u s e b y G S F C a n d in d u s tr y d o c u me n ts c o o r d in a te d to th e e x te n t indicated as follows in (c) and (e). a. Co o r d in a te d f e d e r a l s p e c if ic a tio n s a n d s ta n d a r d s . b . C o o r d in a t e d mi l i t a r y s p e c i f i c a t i o n s a n d s t a n d a r d s ( i n c l u d in g JANs, ANs, and ANDs). c. I n d u s tr y s p e c if ic a tio n s a n d s ta n d a r d s ( e . g . , th o s e p r o mu lg a te d b y n a t i o n a l l y r e c o g n i z e d as s o c i a t i o n s , c o mmi t t e e s , a n d te c h n ic a l s o c ie tie s ) h a v in g c o o r d in a te d s ta tu s e s ta b lis h e d u n d e r p o lic ie s a n d p r o c e d u r e s o f o th e r g o v e r n me n t a g e n c ie s a n d approved for GSFC use. d . L i mi t e d c o o r d in a t i o n mi l i t a r y a n d i n t e r i m f e d e r a l s p e c i f i c a t i o n s a n d s ta n d a r d s is s u e d b y o th e r g o v e r n me n t a g e n c ie s a n d approved for GSFC use. e. I n d u s tr y s p e c if ic a tio n s a n d s ta n d a r d s h a v in g limite d c o o r d in a tio n s ta tu s e s ta b lis h e d u n d e r p o lic ie s a n d p r o c e d u r e s o f o th e r g o v e r n me n t a g e n c ie s a n d a p p r o v e d f o r G S F C u s e . 5.3.2. Group II G r o u p I I c o v e r s in d u s tr y s p e c if ic a tio n s a n d s ta n d a r d s ( e . g . , th o s e p r o mu l g a t e d b y n a t i o n al l y r e c o g n i z e d a s s o c i a t i o n s , c o mmi t t e e s , a n d te c h n ic a l s o c ie tie s ) a p p r o v e d f o r u s e b y G S F C, f o r w h ic h s ta tu s e q u iv a l e n t t o mi l i t a r y d o c u me n t s h a s n o t b e e n e s t a b l i s h e d . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 63 5.3.3. Group III G r o u p I I I c o v e r s G o v e r n me n t s p e c if i c a t i o n s a n d s t a n d a r d s n o t p r e v io u s ly lis te d b y G S F C. 5.3.4. Group IV G r o u p I V c o v e r s in d u s tr y s p e c if ic a tio n s a n d s ta n d a r d s n o t p r e v io u s ly lis te d f o r u s e b y G S F C. Co mp a n y s p e c if ic a tio n s a n d s ta n d a r d s a r e n o t to b e c o n s id e r e d a s a p a r t o f th is g r o u p . Co p ie s o f in d u s tr y s p e c if ic a tio n s a n d s ta n d a r d s s h o u ld b e o b ta in e d f r o m the association concerned. 5.3.5. Group V G r o u p V c o v e r s c o mp a n y s p e c if ic a tio n s a n d s ta n d a r d s . Re f e r e n c e to a c o mp a n y s p e c if ic a tio n o r s ta n d a r d f o r n e w a p p lic a tio n s o r d e s ig n s s h a ll b e d is c o n tin u e d u p o n th e is s u a n c e o f a s p e c if ic a tio n or standard in Group I, II, III, or IV covering an interchangeable i t e m o f e q u iv a l e n t q u a l i t y . N o te ( a p p lic a b le to G r o u p s I , I I , I V , a n d V a b o v e ) : W h e n in d u s tr y s p e c if ic a tio n s a n d s ta n d a r d s a r e s p e c if ie d o n G S F C d r a w in g s a n d d o c u me n ts , s u c h s p e c if ic a tio n s a n d s ta n d a r d s s h a ll b e a v a ila b le to G S F C p e r s o n n e l. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 64 ENGINEERING DRAWING STANDARDS MANUAL 6. ENGINEERING ORDER 6.1. General Requirements T h e u s e o f E n g in e e r in g O r d e r ( E O ) f o r th e p u r p o s e o f r e v is in g r e le a s e d d r a w in g s is th e p r e f e r r e d me th o d o f c h a n g in g d r a w in g s , a lth o u g h th e me th o d o f d ir e c t c h a n g e to th e d r a w in g ma y b e c h o s e n b y th e p r o j e c t e n g in e e r . After an EO system is elected, it is the responsibility of that project design a c tiv ity to a s s ig n n u mb e r in g a n d ma in ta in th e d o c u me n ta tio n s ys te m. T h e a p p r o v e d E O is c o n s id e r e d a n o f f ic ia l p a r t o f th e o r ig in a l d r a w in g a n d s h a ll a l w a y s b e a v a i l a b le t o o th e r s , e v e n a f t e r i n c o r p o r a t i o n . W i t h t h i s s y s t e m, r e f e r e n c e t o E O s i n t h e r e v i s i o n b l o c k o f d r a w i n g s i s p e r mi t t e d i n p l a c e o f t h e u s u a l d e ta ile d lis tin g o f c h a n g e s . 6.2. Format Sample T h e f o llo w in g min imu m in f o r ma tio n s h o u ld b e in c lu d e d o n a n E O f o r m. S e e F ig u r e 3 0 a o n p a g e 6 6 . 1 . D R A W I N G & R E V . L E V E L : T h e n u mb e r o f th e d r a w in g to b e c h a n g e d a n d th e r e v i s i o n l e v e l a f f e c t e d . W h e r e t h e c h an g e i s e x a c t l y t h e s a me o n mo r e t h a n o n e d r a w in g , a d d a n a s te r is k to th e d r a w in g a n d r e v is io n le v e l b lo c k ; th e n a d d th e d r a w in g n u mb e r s a lo n g w ith th e n e x t a p p lic a b le E O n u mb e r to th e a s te r is k ta b le o n th e f ie ld o f c h a n g e o n E O p a g e 1 . I f mo r e th a n o n e E O p a g e is r e q u ir e d , t h e a d d i t i o n a l E O p a g e s w i l l o n ly n o te t h a t t h o s e p a g e s a f f e c t t h e list of drawings the EO is written against. 2 . I N C . R E V . : T h e r e v is io n le tte r to b e p r o v id e d b y th e Co n f ig u r a tio n Ma n a g e r ( CM) a t th e time o f d r a w in g c h a n g e in c o r p o r a tio n . O u ts ta n d in g E O n u mb e r s ma y b e in c o r p o r a te d u n d e r o n e r e v is io n le tte r . 3 . T I T L E : T i t l e o f t h e d r a w i n g t o b e r e v is e d . 4 . N E X T A S S E MBL Y : N e x t a s s e mb ly n u mb e r o f th e d r a w in g s a f f e c te d b y th e change. 5 . U S E D O N : T h e typ e o f e q u ip me n t s u c h a s G r o u n d - S u p p o r t E q u ip me n t ( G S E ) o r F lig h t ( F L T ) . 6 . P R O G R A M: N a me o f p r o g r a m. 7 . R E A S O N : R e a s o n w h y t h e c h a n g e i s n e c e s s a r y r a th e r th a n d e s c r ip tio n o f th e c h a n g e . A C o n f i g u r a t i o n C h a n g e R e q u e s t ( C C R ) n u mb e r a n d c l a s s t o b e p r o v id e d b y th e p r o j e c t e n g in e e r w h e r e a p p lic a b le o r w h e n r e q u ir e d b y th e CM. 8. TYPE OF EO: A d v a n c e N o t ic e o f C h a n g e : A c h a n g e t o t h e d r a w i n g t h a t s h a l l t a k e p l a c e a t s o me f u tu r e d a te . S e v e r a l E O s ma y b e in c o r p o r a te d u n d e r th e s a me r e v is io n letter. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 65 D e v ia t io n : A r e c o r d o f a c h a n g e t o a ma n u f a c t u r e d p a r t . T h e c h a n g e i s t o a c c e p t a d i s c r e p a n c y c o r r e c t i o n i n a p a r t. T h e E O w o u l d b e a s s i g n e d a b a c k s la s h ( \) in s te a d o f a n E O r e v is io n let t e r a n d i d e n t i f i e d a s a “ D e v i a t i o n f o r s e r ia l n u mb e r ” in th e r e v is io n b lo c k . N o p h ys ic a l c h a n g e to th e f ie ld o f the drawing will occur. O t h e r : A r e c o r d o f s p e c ia l te s ts o r c ir c u ms ta n c e s th a t mig h t n o t b e r e q u ir e d o f a ll p a r ts . 9 . D E S C R I P T I O N : D e s c r ip tio n o f th e c h a n g e to b e ma d e s h a ll b e s h o w n u s in g t h e w o r d s “ W a s ” a n d “ N o w ” o r “ R e mo v e ” a n d “ A d d . ” T h e w o r d s “ D e l e t e , ” “ C a n c e l l e d ” o r “ S u p e r s e d e d ” ma y a l s o b e u s e d . I n th e s itu a tio n o f s u p e r s e d in g a p r e v io u s E O , a “ W a s ” a n d “ N o w ” c u r r e n t c o n d itio n mu s t a ls o b e s h o w n , j u s t a s if th e p r e v io u s E O h a d b e e n in c o r p o r a te d . I f t h e c u r r e n t E O f o r ma t i s i n s u f f i c i e nt i n s i z e , a s h e e t 2 o r mo r e ma y b e a d d e d ( s e e F ig u r e 3 0 b ) . I f a la r g e r p a g e is r e q u ir e d a s u p p le me n ta l s h e e t s h a ll b e p r e p a r e d o n a r e g u la r d r a w in g - s iz e s h e e t r e p r o d u c ib le v e llu m a n d s h a ll s ta te “ T h is s u p p le me n ta l s h e e t is p a g e o f E O n u mb e r o f d r a w in g n u mb e r . ” E n te r in th e d e s c r ip tio n a r e a o f p a g e 1 o f th e E O to “ s e e s u p p le me n ta l s h e e t p a g e of this EO.” T h e E O mu s t b e o n a n a p p r o v e d E O f o r m. N o p a s te o n s o r lin e s tr ik e o u ts a r e p e r mi t t e d . A l l l e t t e r i n g mu s t b e . 1 2 i n c h o r l a r g e r a n d u n if o r m i n s i z e . 10. “SHEET OF ” : I n d ic a te n u mb e r 1 a n d th e to ta l n u mb e r o f E O s h e e ts . O n r e ma in in g s h e e ts , e n te r th e n u mb e r o f th a t p a r tic u la r s h e e t o f th e E O o n ly. 1 1 . D i s p o s i t i o n : A c tio n s to b e ta k e n a s a r e s u lt o f th e c h a n g e . 1 2 . E F F E CT I V E : I f th e c h a n g e a f f e c ts o n ly a limite d n u mb e r o f a s e r ie s o f lik e p a r t s , f i l l i n t h e s e r i a l n u mb e r ( s ) a n d d a t e . i F T H E C H A N G E 1 3 . D R A W N B Y : S ig n a tu r e , d a te , a n d G S F C CO D E . 1 4 . I S S U E D BY : S ig n a tu r e , d a te , a n d G S F C c o d e o f CM o f f ic ia l. 1 5 . CH E CK E D : S ig n a tu r e s , d a te , a n d G S F C c o d e s . W h e n p r a c tic a b le , s ig n a tu r e s s h o u ld b e th o s e o f p e r s o n s w h o a p p r o v e d th e o r ig in a l d r a w in g . 16. APPROVED: sIGNATURE, DATE, AND Signature, date, and GSFC CODE. 1 7 . E N G I N E E R : S ig n a tu r e , d a te , a n d G S F C CO D E o f p r o j e c t r e s p o n s ib le e n g in e e r . 1 8 . C C B A P P R O V A L : Co n f ig u r a tio n c o n tr o l b o a r d s ig n a tu r e . 1 9 . J O B O R D E R N O : F a b r ic a tio n n u mb e r to b e a s s ig n e d b y th e c o g n iz a n t e n g in e e r . c o d e 2 0 . E O N O : T o b e a s s ig n e d b y th e c o n f ig u r a tio n ma n a g e me n t o f f ic e o r th e designated representative for the program for which the EO is being written. E O n u mb e r s a r e i s s u e d i n n u me r i c a l s e q u e n c e a g a in s t a p a r tic u la r d r a w in g n u mb e r w h e n th e E O is s e n t f o r c h e c k in g . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 66 ENGINEERING DRAWING STANDARDS MANUAL 3 8 9 7 19 18 1 10 20 2 E G E R GO D R N IN E IN R E G D AR S CE FLIG T C TER O D D PA H EN EO D AW G & R LE L R IN EV VE EO N . O IN R V C E G E B R EN ELT,M Y AR LAND SH ET E OF 14 3a . C B APP O AL C R V 4. 1. D AW G TITLE R IN 2. R SO EA N IS E BY C O SU D M 3b . JOB O E N . RD R O G FC C D LO ATIO S O E C N DATE 12 5. TYP O E : E F O 6. PR G AM O R 7. EFFE TIV C E AD AN E N TIC O C AN E V C D O E F H G D IA N EV TIO O E (Explain) TH R U DO SE N SE IA R L D ing w be revised raw ill D ing w not raw ill be revised N TA EX SSY DATE 8. D C IPTIO ES R N 6 5 4 10. D AW B R N Y C EC ED H K : AP O D: PR VE AP O D: PR VE EN IN R G G EE IN : R P PA TS USE M E R K SC A O AD W R N D PO ITIO IS S N AS IS RAWM TER L A IA DATE C D O E DATE C E OD DATE C D O E DATE C E OD DATE C D O E PA T IN PR E R OC SS 11 13 15 16 17 Figure 30a: Engineering Order (sheet 1) E G E R GO D R N IN E IN R E G D AR S CE FLIG T C TER O D D PA H EN EO D AW G & R LE L R IN EV VE EO N . O IN R V C E G E B R EN ELT,M Y AR LAND SH ET E OF Figure 30b: Engineering Order (sheet 2) X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 67 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 68 ENGINEERING DRAWING STANDARDS MANUAL 7. DRAWING REVISIONS 7.1. Revision Methods Re v is io n s in th e f ie ld o f d r a w in g s a r e ma d e b y d e le tio n , e ith e r b y e r a s u r e o r crossing out (a series of parallel lines placed on the face of drawing over the d e le te d p o r tio n s o f d r a w in g ) , b y a d d itio n , o r b y r e d r a w in g ( a ll d e lin e a tio n s s h a ll b e ma d e t o s c a l e ) . 7.2. Revision Identification Re v is io n s s h a ll b e id e n tif ie d b y s ymb o ls in th e f ie ld o f th e d r a w in g ( s e e p a r a g r a p h 7 . 4 ) c r o s s - r e f e r e n c e d to th e r e v is io n d e s c r ip tio n . Re v is io n s ymb o ls s h a ll b e e n te r e d in th e r e v is io n b lo c k ( s e e F ig u r e s 3 1 a , 3 1 b , a n d 3 1 c , p a g e 6 9 ) . Re v is io n s s h a ll b e b y a lp h a b e tic a l le tte r a n d o r d e r , e x c e p t th a t le tte r s I , O , Q , S , X , a n d Z s h a ll n o t b e u s e d a s r e v is io n s ymb o ls . F o llo w in g le tte r Y , u s e A A , A B, etc.; after AY, use BA, BB, etc. 7.3. Revision of Multisheet Drawings T h e r e i s o n l y o n e a c c e p t a b l e me t h o d o f r e c o r d i n g c h a n g e s t o mu l t i s h e e t d r a w i n g s . Re v is io n s to a n y s h e e t( s ) s h a ll b e r e c o r d e d in th e r e v is io n d e s c r ip tio n b lo c k o n s h e e t 1 , a n d r e f e r e n c e s h a ll b e ma d e to s h e e t ( s ) a f f e c t e d . L e v e l o f r e v i s i o n s h a l l be changed on each drawing sheet whether or not that particular sheet is affected. T h e r e v is io n d e s c r ip tio n b lo c k o n a ll s h e e ts o th e r th a n s h e e t 1 s h a ll s ta te “ S e e s h e e t 1 f o r r e v is io n s . ” 7.4. Revision Recording A s y mb o l ( e . g . , “ A 3 ” ) e n c l o s e d i n a c i r c l e s h a l l a p p e a r i n t h e f i e l d o f d r a w i n g a t th e p o in t o f r e v is io n . T h e le tte r “ A ” r e f e r s to a n y r e v is io n s c o mp le te d a t a g iv e n time . T h e n u mb e r f o llo w in g r e f e r s to th e n u mb e r o f th e r e v is io n ma d e . F ig u r e 3 1 a s h o w s e x a mp le s o f th is . T h e s a me s ymb o l ma y a p p e a r mo r e th a n o n c e i f , i n t h e r e v i s i o n d e s c r i p t i o n c o l u mn , mo r e t h a n o n e a c t i o n t o o k p l a c e p e r l i n e ( s e e F ig u r e 3 1 a u n d e r s ymb o l “ A 3 , ” lin e 2 ) . W h e n c h a n g e s a r e ma d e to a d r a w in g th r o u g h a d ir e c t in c o r p o r a tio n , r e v is io n s ymb o ls a r e r e q u ir e d o n th e f ie ld o f th e d r a w in g , a n d a b b r e v ia te d d e s c r ip tio n s o f th e c h a n g e s mu s t b e r e c o r d e d in th e r e v is io n b lo c k . W h e n c h a n g e s a r e ma d e to a d r a w in g th r o u g h a n E O o r Re v is io n N o tic e s ys te m, r e v is io n s ymb o ls a r e n o t r e q u ir e d o n th e f ie ld o f th e d r a w in g , b u t th e Re v is io n Blo c k mu s t s ta te “ S e e E O n u mb e r for changes” or “See Revision Notice n u mb e r ” in th e r e v is io n d e s c r ip tio n c o lu mn . F o r e ith e r me th o d o f in c o r p o r a tio n , th e p e r s o n in c o r p o r a tin g th e r e v is io n , th e p e r s o n a s s ig n e d to c h e c k th e in c o r p o r a tio n , a n d th e c o g n iz a n t e n g in e e r r e s p o n s i b l e f o r t h e r e v i s i o n a l l s h a l l d at e a n d i n i t i a l t h e r e v i s i o n b l o c k i n t h e a p p r o v e d c o lu mn . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 69 REVISION SYM DESCRIPTION DATE APPROVAL (1) R.188 WAS R.250 A3 (2) ADDED .500, 1.500 AND 2.000 DIMS 1-2-84 (SIGNATURE) (3) REM'D .750 AND 7.000 DIMS (1) WAS 1.500; (2) WAS .635; B4 (3) WAS 1.000+.005; (4) WAS "NOTE 4" 2-3-84 (SIGNATURE) -.000 Note: Z o n e c o lu mn n o t r e q u ir e d o n C- s iz e d r a w in g s a n d s ma lle r . Figure 31a: Sample Revision Block REVISION SYM DESCRIPTION DATE APPROVAL (1) REPLACES REV-B WITH CHANGE, C 1-9-84 (SIGNATURE) SEE EO NUMBER XXX Note: I f n o “ E O ” s ys te m is u s e d , th e c h a n g e s w o u ld b e s p e lle d o u t, s imila r to F ig u r e 3 1 a . Figure 31b: Sample Revision Block REVISION SYM DESCRIPTION DATE APPROVAL B REPLACES REVISION-B WITHOUT CHANGE 1-9-84 (SIGNATURE) Note: T h e o l d d r a w i n g s h a l l h a v e t h e s t a t e me n t “ R E D R A W N W I T H O U T C H A N G E ” a d d e d to its r e v is io n b lo c k , r e q u ir in g n o c h a n g e le tte r , a n d “ S U P E RS E D E D ” added above its Title block. Figure 31c: Sample Revision Block X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 70 ENGINEERING DRAWING STANDARDS MANUAL 7.5. Redrawn or Replaced Drawings T h e n e x t r e v is io n le tte r in s e q u e n c e s h a ll b e e n te r e d in th e r e v is io n b lo c k o f th e n e w d r a w i n g . T o t h e r e v i s i o n b l o c k s h a l l b e a d d ed “ R e p l a c e s R e v i s i o n ( o l d r e v is io n le tte r ) W ith Ch a n g e ” a n d a d e s c r ip tio n o f th e c h a n g e o r r e f e r e n c e to a n E n g in e e r in g O r d e r ( E O ) d o c u me n t n u mb e r s ha l l b e r e c o r d e d i n t h e d e s c r i p t i o n c o l u mn . A l l p r e v i o u s r e v is i o n s s h a l l b e o mi t t e d f r o m t h e s u p e r s e d i n g d r a w i n g . T h e s t a t e me n t “ R e p l a c e d W i t h C h a n g e B y R e v i s i o n ( n e w r e v i s i o n l e t t e r ) ” s h a l l b e a d d e d to th e s u p e r s e d e d d r a w in g 's r ev is io n b lo c k a n d “ S u p e r s e d e d ” s h a ll b e p l a c e d i n 1 / 4 - i n c h - h i g h l e t t er i n g d i r e c t l y a b o v e t h e T i t l e b l o c k . W h e n a d r a w i n g i s r e d r a w n w i t h o u t c h a n g e s , t h e p h r a s e “ R e p l a c e s R e v i s i o n ( ol d r e v i s i o n l e t t e r ) W ith o u t Ch a n g e ” s h a ll b e a d d e d to r e v is io n b lo c k a n d r e v is io n le tte r s h a ll r e ma in u n c h a n g e d . S e e F i g u r e 3 1 c . O r i g i n a l n a me s a n d d a t e s f r o m t h e o ld t i t l e b lo c k s h a l l b e t y p e d i n o n t h e r e p l a c e me n t d r a w i n g . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 71 8. PARTS LIST AND INDEX LIST T h is s e c tio n e s ta b lis h e s min imu m r e q u ir e me n ts f o r th e p r e p a r a tio n a n d s u b mis s io n o f P a r ts L is ts ( P L ) a n d I n d e x L is ts ( I L ) u s e d w ith e n g in e e r in g d r a w in g s . P a r t s L i s t s ma y b e p r e p a r e d f o r e a c h as s e mb l y d r a w i n g i n a c c o r d a n c e w i t h t h i s s e c tio n . F o r p a r ts lis ts o n d r a w in g s , s e e F ig u r e 3 4 o n p a g e 8 0 o r F ig u r e 3 o n page 10. I n d e x L i s t s ma y b e p r e p a r e d f o r e a c h P a y l o a d , E n g i n e e r i n g M o d e l , M a j o r A s s e mb ly, Co mp le x A s s e mb ly o f a s s e mb lie s , a s d ir e c te d b y P r o j e c t Ma n a g e r . 8.1. Definitions Cover Sheet: This refers to the first sheet of each Parts List or Index List and is a record of the revisions. P a r t s L i s t ( P L ) : T h i s i s a t a b u la t i o n o f t h e i t e ms n e c e s s a r y f o r f a b r i c a t i n g o r a s s e mb l i n g t h e e n d i t e m( s ) t o w h i c h t h e l i s t a p p l i e s . I n d e x L i s t ( I L ) : T h is is a lis t o f th e o n e p r in c ip a l a n d a ll s u b o r d in a te P L s a p p l i c a b l e t o a ma j o r a s s e mb l y . B u l k M a t e r i a l s : T h e s e a r e i t e ms t h a t a r e n e c e s s a r y c o n s t i t u e n t s o f a n a s s e mb l y o r s u b a s s e mb l y , f o r w h i c h t h e q u a n t i t y r e q u ir e d i s n o t r e a d i l y p r e d e t e r min a b le . E x a mp le s a r e o il, w a x , s o ld e r , c e me n t, in k , d a mp in g f lu id , g r e a s e , p o w d e r e d graphite, flux, welding rod, thread, twine, and chain. If the quantity is known, b u t t h e p h ys i c a l n a t u r e o f t h e ma t e r i a l i s s u c h t h a t i t i s n o t a d a p t a b le t o d e p ic t i o n o n a d r a w in g , o r th e ma te r ia l c a n b e c u t to f in is h e d s iz e b y th e u s e o f s u c h h a n d o r b e n c h to o ls a s s h e a r s , p lie r s , k n iv e s , e tc . w ith o u t f u r th e r ma c h in in g o p e r a tio n s , th e n th e ma te r ia l's c o n f ig u r a tio n s h a ll b e f u lly d e s c r ib e d in w r itin g w ith o u t th e n e c e s s ity o f p ic to r ia l p r e s e n ta tio n . S p e c i a l H a n d l i n g E q u i p m e n t a n d P a c k a g i n g : T h i s t e r m a p p l i e s t o i t e ms s u c h a s b o x e s , s h ip p in g c o n ta in e r s , c r a d le s , c r a n e a tta c h me n ts , a n d o th e r s p e c ia l ite ms n e e d e d f o r s to r in g a n d tr a n s p o r tin g . S p e c i a l T e s t E q u i p m e n t : T h i s t e r m a p p l i e s t o i t e ms o f s p e c i a l t e s t e q u ip me n t th a t a r e r e q u ir e d f o r g o v e r n me n t in s p e c tio n o r s e r v ic e ma in te n a n c e , s u c h a s te s t s ta n d s , in d ic a to r s , e tc . A p p l i c a b l e S t a n d a r d s , S p e c i f ic a t i o n s , a n d P u b l i c a t i o n s : T h i s t e r m a p p l i e s t o d o c u me n ts r e f e r e n c e d o n o r in v o k e d b y th e d r a w in g s . 8.2. Requirements 8.2.1. List Preparation T h e P L a n d I L ma y b e p r e p a r e d ma n u a lly o r b y typ e w r ite r o r c o mp u te r w o r d p r o c e s s o r . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 72 ENGINEERING DRAWING STANDARDS MANUAL 8.2.2. List Formats L is ts s h a ll u s e p r e p r in te d 8 1 /2 - b y 1 1 - in c h s iz e f o r ma t. T h e p r e p a r a tio n r e q u ir e me n ts a r e p r o v id e d h e r e in . W h e n mo r e t h a n a s i n g l e s h e e t i s r e q u ir e d to p r e p a r e o r r e v is e a l i s t , t h e l i s t t i t l e i s r e q u ir e d o n t h e f i r s t s h e e t o n ly . The design activity shall use a cover sheet as illustrated in F ig u r e 3 2 a o n p a g e 7 4 . E n tr ie s o n th e c o v e r s h e e t s h a ll b e c o mp le te d a s e x p la in e d in “ Co v e r S h e e t, ” s e c tio n 8 . 3 , b e lo w . 8.2.3. Revision Identification A revision letter and the date of revision shall be applied to each l i s t w h e n a n y c h a n g e i s ma d e . T h e l e t t e r s I , O , Q , a n d X s h a l l n o t b e u s e d a s r e v is io n le tte r s . L is t s h a ll b e r e v is e d in d e p e n d e n tly o f the associated drawings. 8.2.4. Deleting Items I t e ms t o b e d e l e t e d ma y b e e i t h e r l i n e d o u t, e r a s e d , o r o mi t t e d . 8.2.5. Adding Items N e w o r s u p e r s e d in g ite ms ma y b e a d d e d a t th e e n d o f a lis t o r inserted in the list in proper sequence. 8.3. Cover Sheet The Cover Sheet shall be the first sheet for each PL or IL and shall be prepared as indicated herein. 8.3.1. Format T h e Co v e r S h e e t s h a ll b e p r e p a r e d o n F o r m 6 7 0 - 3 6 ( 1 /6 5 ) . Re f e r to F ig u r e 3 2 a o n p a g e 7 4 . 8.3.2. Entries E n tr ie s s h a ll b e ma d e in th e b lo c k s a n d c o lu mn s o f th e Co v e r S h e e t a s d ir e c te d o n th e f o llo w in g p a g e : 1 . C O D E I D E N T : E n te r Co d e I d e n tif ic a tio n n u mb e r a s a s s ig n e d b y F e d e r a l S u p p ly CA G E P u b lic a tio n H 4 /H 8 f o r u s in g a c tiv ity. N u mb e r i s l o c a t e d i n t i t l e b lo c k o f d e s i g n a c t i v i t y . 2 . L I S T N O . : E n te r th e n u mb e r o f th e P L o r I L f o r w h ic h th e c o v e r sheet is being prepared. 3. SHEET OF : E n t e r t h e t o t a l n u mb e r o f s h e e t s u s e d . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 73 4 . RE V : E n t e r r e v is i o n l e t t e r o f t h e l a t e s t r e v is i o n t o t h e P L . Ch a n g e s to th is b lo c k s h a ll b e ma d e b y e r a s u r e . 5 . I T E M N O ME N C L A T U R E : E n t e r t h e s a me n o me n c l a t u r e t h a t a p p e a r s i n t h e T i t l e b lo c k o f t h e a s s e mb l y f o r w h i c h t h e l i s t i s b e in g p r e p a r e d . T h e ite m n o me n c la tu r e s h a ll a lw a ys b e a n o u n . 6 . V E N D O R: I f p r e p a r e d b y c o n t r a c t o r f o r G S F C , e n t e r c o n t r a c t o r n a me a n d F e d e r a l S u p p ly CA G E Co d e N u mb e r s . 7 . P R E P A R E D : E n te r n a me o f p e r s o n p r e p a r in g lis t. 8 . A P P R O V E D : E n t e r s i g n a t u r e o f p er s o n a p p r o v i n g f o r a c c u r a c y a n d c o mp le te n e s s . 9 . E N G A P P R O V A L : E n te r s ig n a tu r e o f A s s is ta n t P r o j e c t E n g in e e r ( o p tio n a l) . 1 0 . E N G A P P R O V A L : E n te r s ig n a tu r e o f P r o j e c t E n g in e e r ( ma n d a to r y f o r a ll p r o c u r e me n t) . 1 1 . A U T H E N T I C A T I O N : E n te r n a me o f p e r s o n d e s ig n a te d to s ig n f o r d e s ig n a c tiv ity o r d iv is io n . 12. CONTRACT NO: When prepared by contractor for GSFC, enter th e c o n tr a c t n u mb e r . 1 3 . L T R : E n te r r e v is io n le tte r o f c u r r e n t r e v is io n . 1 4 . D E S CRI P T I O N : E n te r a c o mp le te a n d c o n c is e d e s c r ip tio n o f th e r e v is i o n t h a t a p p l i e s t o t h e P L . 1 5 . D A T E : E n te r d a te o f r e v is io n . 1 6 . A P P ( A p p r o v a l) : E n t e r i n i t i a l s o f p e r s o n c o mp l e t i n g r e v is i o n review. 1 7 . R E C O R D O F R E V I S I O N : E n te r r e v is io n s ta tu s o f in d iv id u a l P L sheets. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 74 ENGINEERING DRAWING STANDARDS MANUAL Figure 32a: Parts List (and Index List) Cover Sheet X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 75 8.4. Parts List Continuation Sheet T h e P L c o n tin u a tio n s h e e t s h a ll b e p r e p a r e d a s in d ic a te d h e r e in . Cir c le d n u mb e r s h a v e b e e n a s s i g n e d t o e a c h c o l u mn o r b l o ck f o r i d e n t i f i c a t i o n o n l y . T h e P L s h a l l c o n ta in a c o v e r s h e e t a n d a s ma n y P L c o n tin u a tio n s h e e ts a s n e c e s s a r y to c o mp l e t e l y l i s t a l l t h e i n f o r ma t i o n . 8.4.1. Format T h e P L c o n tin u a tio n s h e e t s h a ll b e p r e p a r e d o n F o r m 6 7 0 - 3 7 ( 1 /6 5 ) . Re f e r to F ig u r e 3 2 b o n p a g e 7 6 8.4.2. Entries E n tr ie s s h a ll b e ma d e in th e b lo c k s a n d c o lu mn s a s d ir e c te d b e lo w : 1 . P A R T S L I S T N O . : O n e a c h s h e e t o f t h e P L , e n t e r t h e n u mb e r o f th e c o r r e s p o n d in g d r a w in g . 2 . S H E E T N O . : O n e a c h s h e e t , e n t e r t h e a p p r o p r i a t e s h e e t n u mb e r . 3 . I T E M F I N D N O S . : E n te r n u mb e r ta k e n f r o m a s s e mb ly d r a w in g . 4 . D W G . D O C U ME N T P A R T O R S T O C K N O . : E n t e r t h e p a r t n u mb e r o r o t h e r i d e n t i f y i n g n u mb e r o f e a c h i t e m i n t h e l i s t . 5. QTY REQD PER ASSY.: Enter the quantity required for each a s s e mb l y . 6 . CO D E I D E N T N O . ( Co d e id e n tif ic a tio n n u mb e r ) : E n t e r a p p r o p r ia te n u mb e r a s s ig n e d to th e d e s ig n a c tiv ity p e r CA G E P u b lic a tio n H 4 /H 8 . W h e n a g o v e r n me n t o r in d u s tr y s ta n d a r d p a r t o r s p e c if ic a tio n n u mb e r a p p e a r s in Co lu mn 4 , n o e n tr y s h a l l b e ma d e i n C o l u mn 6 . W h e n t h e C o d e I d e n t i f i c a t i o n N u mb e r f o r a n i t e m i s i d e n t i c a l t o t h a t e n t e r e d i n B l o c k 1 o f t h e Co v e r S h e e t, d o n o t r e p e a t th e n u mb e r in Co lu mn 6 o f th e P L c o n tin u a tio n s h e e t. 7 . D R A W I N G T I T L E O R I T E M D ES C R I P T I O N ( I t e m d e s c r i p t i o n o r n o me n c l a t u r e ) : E n te r th e n o u n o r n o u n p h r a s e d e s c r ib in g th e ite m w h o s e p a r t o r id e n tif yin g n u mb e r a p p e a r s o n a s s e mb ly d r a w in g . 8 . R E M A R K S : E n t e r i n f o r ma t i o n t h a t c o u ld b e u s e f u l f o r r e f e r e n c e [ i. e . , s p e c if ic a tio n , c o n tr o l d r a w in g s , d e s ig n a tio n s ( e . g . , R1 0 , J 1 4 , e tc . ) , v e n d o r 's ite ms , e tc . ]. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 76 ENGINEERING DRAWING STANDARDS MANUAL Figure 32b: Parts List Continuation Sheet S u p p le me n ta r y H e a d in g L is t. I n a d d i t i o n t o t h e h e a d i n g s t h a t a r e u s e d f o r th e ite ms o f th e P L , a s u p p le me n ta r y h e a d in g lis t a s s ta te d below shall be used if applicable: - Bulk Material. - S p e c ia l H a n d lin g E q u ip me n t a n d P a c k a g in g . - S p e c i a l T e s t E q u i p me n t . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 77 - A p p lic a b le S ta n d a r d s , S p e c if ic a tio n s , a n d P u b lic a tio n s . 8.5. Index List Continuation Sheet T h e I L c o n tin u a tio n s h e e t s h a ll b e p r e p a r e d a s in d ic a te d h e r e in . Cir c le d n u mb e r s h a v e b e e n a s s i g n e d t o e a c h c o l u mn o r b l o ck f o r i d e n t i f i c a t i o n o n l y . T h e I L s h a l l c o n ta in a c o v e r s h e e t a n d a s ma n y I L c o n tin u a tio n s h e e ts a s n e c e s s a r y to c o mp l e t e l y l i s t a l l t h e i n f o r ma t i o n . 8.5.1. Format T h e I L c o n tin u a tio n s h e e t s h a ll b e p r e p a r e d o n F o r m 6 7 0 - 3 9 ( 1 /6 5 ) . Re f e r to F ig u r e 3 3 o n p a g e 7 8 . 8.5.2. Entries E n tr ie s s h a ll b e ma d e in th e b lo c k s a n d c o lu mn s a s d ir e c te d b e lo w : 1 . I N D E X L I S T N U MB E R: O n e a c h s h e e t , e n t e r t h e n u mb e r o f f i r s t a s s e mb l y l e v e l ( t o p o r ma i n a s s e mb l y ) . 2 . S H E E T N O . : O n e a c h s h e e t , e n t e r t h e a p p r o p r i a t e s h e e t n u mb e r . 3. CODE IDENT.: Enter code identification taken from PL. 4 . L I S T N O . : E n te r n u mb e r o f th e P L . 5 . L I S T N O ME N C L A T U R E : E n t e r n o me n c l a t u r e a s i t a p p e a r s o n the PL. 6 . A S S Y L E V E L : E n t e r t h e n e x t a s s e mb l y l e v e l n u mb e r o f t h e l i s t n u mb e r . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 78 ENGINEERING DRAWING STANDARDS MANUAL Figure 33: Index List Continuation Sheet X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 79 8.6. Find or Item Number System of Identification 8.6.1. Definition A f in d n u mb e r o r ite m n u mb e r is a n u mb e r a s s ig n e d to a p a r t o r s u b a s s e mb ly f o r th e p u r p o s e o f lo c a tin g th e p a r t o r s u b a s s e mb ly in th e f ie ld o f th e a s s e mb ly d r a w in g . T h e f in d o r ite m n u mb e r is a ls o s h o w n i n t h e P a r t s L i s t f o r a n a s s e mb l y d r a w i n g , w h e t h e r t h e l i s t i s s e p a r a te o r a n in te g r a l p a r t o f th e d r a w in g . T h e “ f in d n u mb e r ” is u s u a lly a s s o c ia te d w ith a s e p a r a te P a r ts L is t, a n d th e “ ite m n u mb e r ” is u s u a lly a s s o c ia te d w ith th e L is t o f Ma te r ia l o n d r a w in g s , b u t b o th a r e u s e d f o r lo c a tin g p a r ts . P a r ts a n d s u b a s s e mb lie s a r e id e n tif ie d b y o th e r n u mb e r s f o r p u r p o s e s o f p r o c u r e me n t a n d ma r k in g . T h e s e id e n tif yin g n u mb e r s a r e c r o s s - r e f e r e n c e d t o t h e f in d o r ite m n u mb e r s in th e P L o r in a ta b u la tio n o n th e a s s e mb ly d r a w in g . 8.6.2. Application and Limitation T h e f in d o r ite m n u mb e r s ys te m p r o v id e s a q u ic k me a n s o f lo c a tin g p a r ts o n a r e la tiv e ly s ma ll a r e a o f a d r a w in g h a v in g a h ig h d e n s ity o f p a r ts . I t is p r e f e r r e d th a t th e c o n v e n tio n a l me th o d o f id e n tif ic a tio n ( ite m n u mb e r s ) b e u s e d o n d r a w in g s o f s imp le a s s e mb lie s , e v e n th o u g h f in d a n d p a r t n u mb e r s a r e u s e d f o r c o mp le x a s s e mb lie s th a t a r e c o mp o n e n ts o f th e s a me e q u ip me n t. S e e F ig u r e 3 4 o n p a g e 8 0 . F o r a s a mp le d r a w in g o f a n a s s e mb ly u s in g th e f in d a n d p a r t n u mb e r s ys te m, s e e F ig u r e 1 7 o n p a g e 4 0 . T h e i t e m n u mb e r s y s t e m o f i d e n t i f i c a t i o n s h a l l a l s o b e u s e d t o l o c a t e p i e c e s o n d r a w i n g s o f i n s e p ar a b l e a s s e mb l i e s w h e n ma t e r i a l s p e c if ic a tio n s o r ma te r ia l te mp e r s d if f e r f r o m o n e a n o th e r . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 80 ENGINEERING DRAWING STANDARDS MANUAL R IS N EV IO SYM D S RIP N E C TIO D T AE A RO A PP V L 12 EXPER EN IM T INTERFACE 8 A 11 14 7 6 10 LD E 3 LIN FO 9 5 14 4 M 20500-428 S N T, 1/4-2B U F-3B U N C E R S 13 4 N T, 3/4-16 U F-3B U N C E R S RV M 20500-1214 S E 12 1 M 20500-1018 S N T, 5/8-18 U F-3B U N C E R S 4 4 11 2 M 35308-314 S S R W C P H X G NH C E , A , E A O D C E R S 10 1 G 1416639-1 C S IM H 13 9 1 S A E P C R G 1416635-1 C 13 8 1 G 1416636 C S EV LE E 7 1 G 1416637 C S A U P R E T, P E 6 1 G 1416638 C S A LO E E T, WR 3 3 A 5 1 G 1416679 D S M M U TC TE , O N 4 2 G 1416681 C S AF B A IN H T, E R G 3 3 G 1416640 C B A IN E R G 2 2 S T, M U T C EA O N C 2 2 G 1416680 C G 1 1 G 1416678 D B S ,M U C A E O NT 1 X G 1416697 D M UN C A S M LY O T , S E B R Q E D R D EQ PA T N . R O D S RIP N E C TIO M TE L A RIA M T A ERIA S L PEC& N . O ITEM N . O LIST O M F ATERIAL U LES O E W E SP C IED IM N N S TH R IS E IF -D E SIO S AR IN IN H N E C ES N IO A AER N U S AN AT N L O A TIC D SE TIO C N A-A T LER C : O AN ES .XX .XXX FR TION AC S S A A INIS RA N P CE DM T TIO Goddard Space Flight Center G E N R E BELT, M R A YLAND 125 N E AM INIT D TE A ±.02 ±.005 ±1° ±1/16 D A IN IN R W G TER R E P R G FC P ET D E S -X673-64-1 D S NE E IG R R M V A BU R AN S AR ED E R .010 O C AM E O E LL R S D H P G S R H FERM X. A FLIG T H DW E/PO FAB H DN H AR AR ST AR ESS TEST R 'D EQ D A N R W TITLE HARD ESS TEST N T R N O EQU ED IR NON FLIGHT TEST H DN AR ESS PER ASTM E-18, LO ATIO OPTION C N AL C E KED H C TEST H DN AR ESS PER ASTM E-18 W ER IN ICATED H E D O FIELD O D N F RAW G TH S IN U A P VE P RO D N NO -DESTR C O N U TIVE EXAM ATIO (N IN N DE) REQ'D A P VE P RO D N E R U ED PER S-313-009 C DE D EQ IR O TH DR W IS A INGW P D C US G AS RO U ED IN RV E A P VE -STR S P RO D E S S FTW E O AR : V SIO : ER N GC A P VE -EN IN R P RO D G EE FILE N M : A E N X A Y E T SS U E O S D N C D O E S A C LE WT SH LD LINE FO Figure 34: Sample Assembly Drawing With List of Material 8.6.3. Drawing Requirements W h e n u s e d in th e f ie ld o f th e d r a w in g , ite m n u mb e r s s h a ll b e e n c lo s e d in c ir c u la r - s h a p e d 1 /2 - in c h - d ia me te r b a llo o n s . F o r d r a w i n g s o f e l e c t r o n ic c h a s s i s a s s e mb l i e s , i f t h e o u t l i n e s o f r e s is to r s o r c a p a c ito r s a r e s h o w n , th e r e f e r e n c e d e s ig n a tio n s s h a ll be placed within those outlines when practical. The corresponding f i n d n u mb e r s s h a l l b e o mi t t e d f r o m t h e v ie w s . I n s u c h c a s e s , a ta b le s h a ll b e p r o v id e d o n th e d r a w in g to s h o w th e f in d n u mb e r a s s i g n e d t o e a c h i t e m t h a t i s i d e nt i f i e d b y a r e f e r e n c e d e s i g n a t i o n o n th e v ie w s . T h e s a me f in d n u mb e r s h a ll b e u s e d f o r a n y g r o u p o f r e f e r e n c e d e s ig n a tio n s a s s ig n e d to ite ms o f id e n tic a l c h a r a c te r is tic s . T h e ite m o r f in d n u mb e r s o n a n y d r a w in g s h a ll b e a s s ig n e d in d e p e n d e n tly o f th o s e o n a n y o th e r d r a w in g . F in d n u mb e r s a s s ig n e d to s u b a s s e mb lie s s h o w n o n a n a s s e mb ly d r a w in g s h a ll b e d is tin g u is h e d f r o m th o s e a s s ig n e d to p a r ts b y a d d in g a le tte r s u f f ix to th e s u b a s s e mb ly f in d n u mb e r . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 81 8.7. List of Material A L i s t o f M a t e r i a l ( L M ) s h a l l b e p r e pa r e d a n d i n c l u d e d o n e a c h a s s e mb l y d r a w i n g t o p r o v id e t h e i n d iv id u a l p a r t o r s u b a s s e mb l y i t e m n u mb e r , q u a n t i t y r e q u ir e d , p a r t n u mb e r , d e s c r ip tio n , ma te r ia l, a n d ma te r ia l s p e c if ic a tio n . S e e F ig u r e 3 4 o n page 80. 8.7.1. Format T h e L i s t o f M a t e r i a l s h a l l b e p la c e d a b o v e t h e d r a w i n g T i t l e b l o c k a s s h o w n in F ig u r e 3 4 o n p a g e 8 0 . 8.7.2. Entries E n tr ie s s h a ll b e ma d e in th e b lo c k s a n d c o lu mn s a s in d ic a te d in F ig u r e 3 o n p a g e 1 0 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 82 ENGINEERING DRAWING STANDARDS MANUAL 9. DOCUMENTATION MANAGEMENT 9.1. Typical Drawing Flow for Flight Projects Engineer (concept) Designer (layout) Engineer (approval of layout concepts) Designer Documents (detail, subassy., assy., instl., etc.) on CAD or conventional board drawing Engineer (review) Design Analyst (checking/review) Engineer (consideration Designer of suggestions (modifications) affecting design) Design Analyst (checking approval of CAD/paper or vellum original) Designer Engineer (records change & (approval) forwards check copy) Configuration Manager Advance 1. Update Master CAD File with Names & Dates Shop Copy 2. Release Prints to Fabrication (optional) Parts No Changes to Yes Engineer EOs Completed Released Drawings (change notice) Parts Engineer GSFC QA (acceptance or rejection) Figure 35: Typical Drawing Flow for Flight Projects X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 83 9.2. Archiving D r a w in g s , E n g in e e r in g O r d e r s ( E O s ) , Ce r tif ic a tio n L o g s , A s s o c ia te d L is ts , a n d Engineering Parts Lists (EPLs) shall be archived after signoff. Following are s o me s a mp le a r c h iv in g me th o d s : a. F ilin g o f a ll p a p e r o r ig in a ls . b . S c a n n in g o f th e p a p e r o r ig in a ls to a s ta n d a r d d ig ita l r a s te r ima g e f o r ma t s u c h a s CCI T T G r o u p 4 ( CA L S , MI L - R- 2 8 0 0 2 ) a n d th e n u s in g a d ig ita l s to r a g e s y s t e m t o a r c h i v e t h e r e s u l t i n g d a ta b a s e o f r a s te r ima g e s . c. Mic r o f ilmin g a n d s to r in g o n a p e r tu r e c a r d s w h e n r e q u e s te d b y a G S F C d iv is i o n t h a t s t i l l h a s e q u ip me n t t o r e t r i e v e t h e i n f o r ma t i o n . Note: B e f o r e d e c i d in g t o a r c h i v e u s i n g a p e r t u r e c a r d s , t h e a v a i l a b i l i t y o f r e t r i e v a l e q u i p me n t a n d t h e q u a l i t y o f r e p r o d u c t io n s h o u l d b e c o n s i d e r e d . T h e q u a l i t y o f d r a w i n g s , l i s t s , a n d d o c u me n t s s h a l l me e t t h e l e g ib i l i t y a n d c o n tr a s t r e q u ir e me n ts o f MI L - D - 5 4 8 0 a n d MI L - M- 9 8 6 8 . T h e mic r o f ilm s u p p lie d s h a ll b e T yp e I , Cla s s 1 . 9.3. Computer-Aided Design Drawings T h e p u r p o s e o f th is s e c tio n is to s e t p o lic y o n h o w Co mp u te r - A id e d D e s ig n ( CA D ) d r a w in g s a r e to b e h a n d le d w h ile a c tiv e , s u p p lie d , d o c u me n te d , a n d archived. 9.3.1. Presentation of Computer-Generated Data A c o mp u te r g r a p h ic s o r CA D p r o g r a m i s u s e d t o c r e a t e e l e c t r o n i c d a ta f ile d r a w in g s . A p a p e r o r ig in a l is p r o d u c e d o n w h ic h d r a w in g s i g n a t u r e r e q u i r e me n t s a r e p l a c e d . T h e e l e c t r o n i c d a t a f i l e mu s t b e u p d a t e d t o i n c l u d e n a me s , i n i t i a l s , a n d d a t e s . T h e p a p e r o r i g i n a l i s n o w th e a c tiv e o r ig in a l a n d is f ile d w ith th e c o n f ig u r a tio n ma n a g e r ( CM) , a lo n g w ith th e e le c tr o n ic d a ta f ile w h ic h mu s t b e u s e d f o r future changes. W h e n a r e v is io n is n e e d e d , a n E n g in e e r in g O r d e r ( E O ) p a p e r o r i g i n a l i s w r i t t e n a n d s u b mi t t e d t o t h e C M f o r d is t r i b u t i o n a n d f i l i n g . A f t e r n o mo r e t h a n f i v e o u ts t a n d in g E O s a r e w r i t t e n , a n e w e le c tr o n ic CA D d r a w in g s h o u ld b e p r o d u c e d b y th e o r ig in a tin g G S F C g r o u p o r c o n tr a c to r . T h e c h a n g e s s h a ll b e r e c o r d e d in th e r e v is i o n b lo c k , d a t e d , a n d i n i t i a l e d . A n e w p a p e r o r i g i n a l w i t h t h e changes incorporated, dated, and initialed, shall replace the previous original in the CM file. The new original shall be so s ta mp e d , d a te d , a n d s ig n e d b y th e CM r e p r e s e n ta tiv e . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 84 ENGINEERING DRAWING STANDARDS MANUAL C A D d a t a f i l e s a r e t o b e s t o r e d o n me d i a t h a t a r e c o mp a t i b l e w i t h c u r r e n t l y u s e d G S F C s y s t e ms . T h e s e me d ia i n c l u d e mu l t i t r a c k r e e l s o f c o mp u te r ta p e o r f le x ib le d is k s ( 3 - 1 /2 ” o r 5 - 1 /4 ” d o u b le s id e , h ig h d e n s ity) . E a c h s to r a g e me d iu m ma y c o n ta in o n e o r mo r e f ile s . T h e f o l l o w i n g s h a l l a c c o mp a n y e a c h s t o r a g e r e q u e s t : a. A c o mp u t e r - g e n e r a t e d l i s t o f i n f o r ma t i o n c o n t a i n e d o n e a c h p i e c e o f s t o r a g e me d i u m ( f o r e x a mp l e : n u mb e r , d r a w i n g s i z e , etc.). b . T h e b r a n d n a me o f t h e c o mp u t e r a n d s o f t w a r e u s e d t o c r e a t e t h e f ile s , a n d th e s o f tw a r e v e r s io n n u mb e r if p r a c tic a l. G S F C r e q u ir e s th a t CA D d a ta b e c o n v e r te d to a s ta n d a r d f o r ma t, s u c h a s t h e D r a w i n g I n t e r c h a n g e F i l e ( D X F ) o r I n i t i a l G r a p h ic s Exchange Specification (IGES). Refer to the National Institute for S ta n d a r d s a n d T e c h n o lo g y f o r th e la te s t v e r s io n o f I G E S . T h is typ e o f f o r ma t a llo w s th e CA D d a ta to b e r e a d b y d if f e r e n t typ e s o f CA D s y s t e ms . F o r a t e c h n i c a l o v e r v i ew o f I G E S , r e f e r t o t h e N a t i o n a l Bu r e a u o f S ta n d a r d s p u b lic a tio n , N BS I R8 1 - 2 2 9 , A T e c h n i c a l B r i e f i n g o n t h e I n i t i a l G r a p h i c s E x c h a n g e. 9.3.2. Developing and Using Computer-Generated Drawings A ll q u e s tio n s r e g a r d in g th e la te s t in f o r ma tio n s ys te ms a n d a p p lic a tio n s s h o u ld b e d ir e c te d to th e Co mp u te r - A id e d D e s ig n S e c t i o n o f t h e M e c h a n i c a l En g in e e r in g Br a n c h . D r a w in g s g e n e r a te d b y c o mp u te r mu s t b e to s c a le p e r s e c tio n 3 . 4 o n p a g e 3 2 o f t h i s ma n u a l . 9.3.3. Specification Data T h e A me r i c a n N a t i o n a l S t a n d ar d s I n s t i t u t e p u b l i c a t i o n , D i g i t a l Representation for Communication of Product Definition Data ( A N S I Y 1 4 . 2 6 M- 1 9 8 7 a n d u p d a te s ) , s h o u ld b e c o n s u lte d to e s ta b lis h a s ta n d a r d d a ta c o mmu n ic a tio n s f o r ma t. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 85 10. DESIGN REFERENCES, STANDARDS, AND SPECIFICATIONS 10.1. Dimensioning and Tolerancing 10.1.1. Dimensioning and Tolerancing Practices T h e d ime n s io n in g a n d to le r a n c in g f o r a ll typ e s o f d r a w in g s s h a ll b e in accordance with ANSI Y14.5M-1982 (or later revisions). Copies are available from A me r i c a n N a t i o n a l S t a n d a r d s I n s t i t u t e 1 4 3 0 Br o a d w a y New York, NY 10018 A me r i c a n S o c i e t y o f M e c h a n i c a l E n g i n e e r s 3 4 5 E . 4 7 th S tr e e t New York, NY 10017 10.1.2. Statements on Dimensioning a. D i me n s i o n s s h a l l b e c h o s e n a n d p l a c e d o n d r a w i n g s b a s e d o n th e p a r ts in te r r e la tio n s h ip s w ith ma tin g p a r ts , n o t to i n s i g n if i c a n t t h e o r e t i c a l c e n t e r l i n e s . b . P r ima r y, s e c o n d a r y, a n d te r tia r y d a tu m f e a tu r e s s h a ll b e la b e le d in a lp h a b e tic a l o r d e r w h e n c r e a tin g a n e w d r a w in g . c. D r a w in g s o f p a r ts r e q u ir in g te mp la te s in th e f a b r ic a tio n p r o c e s s a n d th e ir te mp la te d r a w in g s mu s t b e d ime n s io n e d a lik e . Re f e r to to o lin g r e q u ir e d n o te s in “ D ime n s io n N o te s , ” p a r a g r a p h 2 . 4 . 4 . 1 on page 16. d . U s e a min imu m o f r e f e r e n c e d ime n s io n s o n d r a w in g s . e. W h e n u s in g tr u e p o s itio n d ime n s io n in g * , th e d ime n s io n f r o m th e f e a tu r e to o th e r e d g e s a n d its p e r p e n d ic u la r ity r e la tio n s h ip t o a s u r f a c e mu s t b e i d e n t i f i e d w i t h d a t u m l e t t e r s . I mp l i e d d a tu ms ( w h e n n o d a tu m le tte r ( s ) a r e s p e c if ie d ) a r e n o lo n g e r acceptable. * b a s i c , o r t h e o r e t i c a l l y e xa c t d ime n s io n s ; e x a mp le : X.XXX X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 86 ENGINEERING DRAWING STANDARDS MANUAL 10.2. Metric Dimensioning N MI 8 0 1 0 . 2 A , U s e o f th e M e tr ic S y s te m o f M e a s u r e m e n t in NA S A P r o g r a m s, e s ta b lis h e s p o lic y a n d r e q u ir e me n ts f o r u s e o f th e me tr ic me a s u r e me n t s ys te m ( a ls o k n o w n a s th e I n te r n a tio n a l S ys te m o f U n its , o r S I ) in N A S A p r o g r a ms a n d th e c o n d itio n s u n d e r w h ic h b o th E n g lis h a n d me tr ic me a s u r e me n ts ma y b e u s e d . W h e n me tr ic d ime n s io n in g is to b e u s e d , th e d o c u me n ts A S T M E 3 8 0 - 9 1 a , S ta n d a r d P r a c tic e fo r U s e o f th e I n te r n a tio n a l S y s te m o f U n its (S I ), a n d N A S 1 0 0 0 0 , NA D o c u m e n ts P r e p a r a tio n a n d M a in te n a n c e in S I (M e tr ic ) U n its , g iv e s p e c if ic in f o r ma tio n a n d c o n v e r s io n f a c to r s . 10.2.1. SI Units and Symbols a. S I b a s e u n its a r e s e v e n w e ll- d e f in e d u n its th a t a r e r e g a r d e d a s d ime n s io n a lly in d e p e n d e n t. T h e y a r e a s f o llo w s : SI Base Units Quantity Name Symbol length meter m mass kilogram kg time second s electric current ampere A thermodynamic temperature* kelvin K luminous intensity candela cd amount of substance mole mol S e le c te d L is t o f D e r iv e d U n its Quantity Name or Unit Symbol Formula acceleration meter per second squared m/s2 - angular acceleration radian per second squared rad/s2 - angular velocity radian per second rad/s - area square meter m2 - density, mass kilogram per cubic meter kg/m3 - electric charge coulomb C Axs electric potential volt V W/A electrical resistance ohm (Omega) V/A energy joule J Nxm force newton N kg x m/s2 frequency hertz Hz 1/s magnetic flux weber Wb Vxs moment of force newton meter Nxm - power watt W J/s pressure or stress pascal Pa N/m2 velocity meter per second m/s - volume cubic meter - m3 *The SI temperature scale is the International Thermodynamic Kelvin Scale, symbol K. Degree Celsius, symbol C, is for general use. The span of one degree Celsius is exactly one Kelvin. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 87 b . D ime n s io n in g a n d to le r a n c in g s h a ll b e in S I u n its a n d d e c ima l f r a c t i o n s o f t h e u n i t . A l l l i n e a r d ime n s i o n s s h a l l b e i n mi l l i me t e r s a n d d e c i ma l f r a c t i o n s o f mi l l i me t e r s . A l t h o u g h t h e SI unit for the plane angle is the radian, angles stated in d e g r e e s , min u te s , a n d s e c o n d s , o r in d e g r e e s a n d d e c ima l o f a d e g r e e ( p r e f e r r e d ) , s h a ll b e u s e d w h e n d ime n s io n in g p a r ts . T h e n u mb e r o f d e c i ma l p l a c e s i n t h e d i me n s i o n s h a l l b e t h e s a me a s t h e n u mb e r o f p l a c e s i n t h e r e q u ir e d t o l e r a n c e . T h e r o u n d i n g o f d i me n s i o n s a n d t o l e r a n c i n g s h al l b e i n a c c o r d a n c e w i t h s e c t i o n 1 0 . 2 . 2 . 2 o n p a g e 8 9 . D r a w in g s s h a ll b e d ime n s io n e d a n d toleranced in accordance with ANSI Y14.5M-1982. c. S u r f a c e t e x t u r e v a l u e s s h a l l b e n o t e d i n mic r o me t e r s (µm) . S e e t h e f o l l o w i n g t a b le : Surface Texture Conversion Values Roughness Grade Micrometers Microinches Numbers 50 2000 N12 25 1000 N11 12.5 500 N10 6.3 250 N9 3.2 125 N8 1.6 63 N7 0.8 32 N6 0.4 16 N5 0.2 8 N4 0.1 4 N3 0.05 2 N2 0.025 1 N1 d. Forces, such as tensile and shear loads, shall be shown in n e w to n s ( N ) . e. S tr e s s e s s h a ll b e s h o w n in me g a p a s c a ls ( MP a = P a x 1 0 6 ) . T h e f o llo w in g ta b le g iv e s e x a mp le s : U l t i ma t e S t r e n g th English (PSI) S I ( MP a ) Tensile Shear Tensile Shear 85,000 50,000 600 340 125,000 75,000 900 540 160,000 95,000 1,100 660 180,000 110,000 1,250 750 220,000 132,000 1,550 930 260,000 156,000 1,800 1,080 f. P r e s s u r e v a lu e s f o r liq u id a n d g a s s h a ll b e s h o w n in k ilo p a s c a ls (kPa = Pa x 103 ). X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 88 ENGINEERING DRAWING STANDARDS MANUAL g . Ma s s v a lu e s s h a ll b e s h o w n in k ilo g r a ms ( k g ) . h . P r e f e r r e d d i a me t e r / p i t c h c o mb i n at i o n s f o r t h r e a d e d f a s t e n e r s a r e shown in the following table, in accordance with ISO/TC20/SC4 Re s o lu tio n s 1 6 9 a n d 2 2 0 . Dash Numbers First Second Oversize Oversize Thread Size Nominal Size (0.5 mm) (1 mm) 1.0 x 0.25 -010 - - 1.2 x 0.25 -012 - - 1.6 x 0.35 -016 - - 2.0 x 0.40 -020 - - 2.5 x 0.45 -025 - - 3.0 x 0.50 -030 - - 3.5 x 0.60 -035 - - 4.0 x 0.70 -040 - - 5.0 x 0.80 -050 -055 - 6.0 x 1.0 -060 -065 - 7.0 x 1.0 -070 -075 - 8.0 x 1.0 -080 -085 -090 10.0 x 1.25 -100 -105 -110 12.0 x 1.25 -120 -125 -130 14.0 x 1.50 -140 -145 -150 16.0 x 1.50 -160 -165 -170 18.0 x 1.50 -180 -185 -190 20.0 x 1.50 -200 -205 -210 22.0 x 1.5 -220 -225 -230 24.0 x 2.0 -240 -245 -250 27.0 x 2.0 -270 -275 -280 30.0 x 2.0 -300 -305 -310 33.0 x 2.0 -330 -335 -340 36.0 x 2.0 -360 -365 -370 39.0 x 2.0 -390 -395 -400 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 89 i. T h e to le r a n c e b lo c k o n th e G S F C d r a w in g f o r ma t s h a ll b e in a c c o r d a n c e w i t h t h e f o r ma t e x a mp l e i n F i g u r e 2 b o n p a g e 6 . T o le r a n c e s g iv e n in th e f o r ma t ma y b e a d j u s t e d t o r e f l e c t t h e r e q u ir e me n ts o f th e d e s ig n . j. P r e f e r r e d M e t r i c L i m i t s & F i t s ( A N S I B4 . 2 - 1 9 7 8 ) e n c o mp a s s e s to le r a n c e r e q u ir e d d e s ig n a tio n s , p r e f e r r e d limits , b a s ic s iz e s , a n d s ymb o ls . k . G e n e r a l T o le r a n c e s fo r M e tr ic D im e n s io n e d P r o d u c ts ( A N S I B4 . 3 - 1 9 7 8 ) is u s e d f o r me tr ic d ime n s io n s w ith o u t to le r a n c e d e s ig n a tio n s . 10.2.2. Unit Conversions 10.2.2.1. Conversion of Dimensions F o llo w in g is a ta b le o f s e le c te d c o n v e r s io n f a c to r s . I f f u r th e r c o n v e r s io n f a c to r s a r e n e e d e d , t h e r e f e r e n c e s o u t l i n e d i n p a r a g r a p h 1 0 . 2 o n p a g e 8 6 a r e v e r y u s e f u l. To Convert From: To: Multiply By: inch meter 2.540000 E–2* in2 m2 6.451600 E–4* foot meter 3.048000 E–1* ft2 m2 9.290304 E–2* lb kg 4.5359237 E–1* lbf/in2 (psi) Pa 6.894757 E3 degrees Fahrenheit degrees Celsius tC = (tF – 32)/1.8* degrees Fahrenheit kelvin tK = (tF + 459.67)/1.8* * E x a c t c o n v e r s io n 10.2.2.2. Unit Rounding a. G e n e r a l Ro u n d in g Ru le s W h e n a f ig u r e is to b e r o u n d e d to f e w e r d ig its th a n th e to ta l n u mb e r a v a ila b le a n d th e f ir s t d ig it d is c a r d e d is le s s th a n 5 , th e la s t d ig it r e ta in e d s h o u ld n o t b e c h a n g e d . F o r e x a mp le , 3 . 4 6 3 2 5 , i f r o u n d e d t o t h r e e d e c i ma l p l a c e s ( i . e . , 4 s i g n i f i c a n t d ig its o r s imp ly 4 d ig its ) , w o u ld b e 3 . 4 6 3 ; if r o u n d e d to th r e e s ig n if ic a n t d ig its , 3 . 4 6 . W h e n t h e f i r s t d ig i t d is c a r d e d i s g r e a t e r t h a n 5 , o r i f i t i s a 5 f o llo w e d b y a t le a s t o n e d ig it o th e r th a n 0 , th e la s t d ig it r e ta in e d s h o u ld b e in c r e a s e d b y o n e u n it. F o r e x a mp le 8 . 3 7 6 5 2 , if r o u n d e d to f o u r d ig its , w o u ld b e 8 . 3 7 7 ; if r o u n d e d to th r e e d ig its , 8 . 3 8 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 90 ENGINEERING DRAWING STANDARDS MANUAL W h e n th e f ir s t d ig it d is c a r d e d is e x a c tly 5 , f o llo w e d o n ly b y zeros, the last digit retained (i.e., the digit preceding the 5, u n d e r lin e d in th e e x a mp le s b e lo w ) s h o u ld b e r o u n d e d u p w a r d if it is a n o d d n u mb e r , b u t n o a d j u s tme n t ma d e if it is a n e v e n n u mb e r . F o r e x a mp le , 4 . 3 6 5 , w h e n r o u n d e d to th r e e s ig n if ic a n t d ig its , b e c o me s 4 . 3 6 . T h e n u mb e r 4 . 3 5 5 w o u ld a ls o r o u n d to th e s a me v a lu e , 4 . 3 6 , if r o u n d e d to th r e e s ig n if ic a n t d ig its . T h is p r o c e d u r e is k n o w n a s “ o d d - e v e n r o u n d in g . ” E x a mp le : Ro u n d 4 6 . 0 2 5 0 0 t o t w o d e c i ma l p l a c e s . Answer: 46.02 E x a mp le : Ro u n d 4 1 . 2 7 5 0 0 t o t w o d e c i ma l p l a c e s . Answer: 41.28 G e n e r a l l y , t h e a c c u r a c y o f t h e n u mb e r o f s i g n i f i c a n t d i g i t s t o w h ic h a v a lu e is to b e r o u n d e d mu s t b e k n o w n b e f o r e a c o n v e r s io n f a c to r is u s e d . I f th is is n o t k n o w n , th e n th e b e s t r u le o f th u mb is to r o u n d th e f in a l v a lu e to th e n u mb e r o f s ig n if ic a n t d ig its c o r r e s p o n d in g to th e le a s t n u mb e r o f s ig n if ic a n t d ig its o f th e o r ig in a l, u n c o n v e r te d n u mb e r s . F o r e x a mp le , to c o n v e r t 1 1 . 4 f e e t ( f t) to me te r s ( m) : 1 1 . 4 x 0 . 3 0 4 8 = 3 . 4 7 4 7 2 , w h ic h r o u n d s to 3 . 4 7 me te r s . N e ith e r t h e c o n v e r s i o n f a c t o r n o r t h e q u an t i t y s h a l l b e r o u n d e d b e f o r e p e r f o r mi n g t h e mu l t i p l i c a t i o n , b e c a u s e a c c u r a c y w o u l d b e r e d u c e d . F o r c o n v e r t i n g i n c h e s ( i n ) t o mi l l i me t e r s ( mm) , w h i c h w o u ld g e n e r a lly b e th e c a s e in d r a w in g s , th e r u le o f th u mb is to r o u n d t o o n e l e s s d e c i ma l p l a c e t h a n t h e o r i g i n a l i n c h d i me n s i o n . W h e n c o n v e r t i n g f r o m mi l l i me t e r s t o i n c h e s , t h e r u l e i s t o r o u n d t o t w o mo r e de c i ma l p l a c e s t h a n t h e o r i g i n a l v a lu e . E x a mp l e : C o n v e r t 3 . 5 7 4 8 i n c h e s t o mi l l i me t e r s . 3.5748 x 25.4 = 90.79992 A n s w e r : 9 0 . 8 0 0 mm E x a mp l e : C o n v e r t 1 . 6 2 5 i n c h e s t o mi l l i me t e r s . 1.625 x 25.4 = 41.275 A n s w e r : 4 1 . 2 8 mm E x a mp l e : C o n v e r t 1 0 1 . 8 3 mi l l i me t e r s t o i n c h e s . 1 0 1 . 8 3 /2 5 . 4 = 4 . 0 0 9 0 5 5 1 1 8 A n s w e r : 4 . 0 0 9 1 in c h e s b . Ro u n d in g Ba s ic D ime n s io n s T o c o n v e r t b a s ic d ime n s io n s o f d r a w in g s f r o m in c h e s to mi l l i me t e r s , t h e c o n v e r t e d v a l u e s h a l l b e r o u n d e d t o t h r e e d e c i ma l p l a c e s s i n c e t h i s s h al l p r o v i d e a ma x i mu m c o n v e r s i o n e r r o r o f 0 . 0 0 0 0 2 in c h . I n c o n v e r tin g b a s ic d ime n s io n s f r o m mi l l i me t e r s t o i n c h e s , t h e v a l u e s h a l l b e r o u n d e d t o f i v e d e c i ma l p l a c e s , g i v i n g a ma x i mu m c o n v er s i o n e r r o r o f 0 . 0 0 0 0 0 5 i n c h . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 91 c. Ro u n d in g T o le r a n c e d D ime n s io n s T h e u s e o f t h e e x a c t r e l a t i o n 1 i n c h = 2 5 . 4 mi l l i me t e r s g e n e r a l l y p r o d u c e s mo r e th a n th e r e q u ir e d n u mb e r o f s ig n if ic a n t d ig its . T o r o u n d b o th th e d ime n s io n a n d th e to le r a n c e s , f ir s t c o n v e r t th e v a lu e s to th e n e c e s s a r y u n its . W h e n c o n v e r tin g f r o m in c h e s t o mi l l i me t e r s , mu l t i p l y b y 2 5 . 4 f o r a p r o d u c t ; w h e n c o n v e r t i n g f r o m mi l l i me t e r s t o i n c h e s , d i v i d e b y 2 5 . 4 f o r a q u o t i e n t . N e x t , take the total tolerance (i.e., the total value between the ma x imu m a n d min imu m limits ) a n d f r o m th e r e s p e c tiv e ta b le b e l o w f i n d t h e c o r r e c t n u mb e r o f d e c i ma l p l a c e s . T h e n r o u n d b o th th e d ime n s io n a n d th e to le r a n c e s to th e n u mb e r o f d e c ima l p l a c e s i n d i c a t e d . H o w e v e r , c a r e mu s t b e t a k e n s o t h a t t h e r o u n d e d to le r a n c e s f a ll in s id e th e o r ig in a l to le r a n c e v a lu e s a s e x p la in e d in p a r a g r a p h 1 0 . 2 . 2 . 2 . d . , “ P r e c is io n Ro u n d in g , ” o n page 92. Original Total Tolerance in Inches At Least: But Less Than: Round Product To: 0.4 & over Whole mm 0.04 0.4 0.X mm 0.004 0.04 0.XX mm 0.0004 0.004 0.XXX mm 0.00004 0.0004 0.XXXX mm Original Total Tolerance in Millimeters At Least: But Less Than: Round Quotient To: 2.0 & over 0.XX in 0.2 2.0 0.XXX in 0.02 0.2 0.XXXX in 0.002 0.02 0.XXXXX in E x a mp l e : C o n v e r t 1 . 3 8 7 ± 0 . 0 0 3 i n c h e s t o mi l l i me t e r s . 1.387 x 25.4 = 35.2298; 0.003 x 25.4 = 0.0762 35.2298 ± 0.0762 T h e to ta l o r ig in a l to le r a n c e is 0 . 0 0 6 , w h ic h lie s b e tw e e n 0 . 0 0 4 a n d 0 . 0 4 , a n d a c c o r d i n g t o t h e f ir s t t a b l e , s h o u l d b e r o u n d e d t o 0 . X X mi l l i me t e r . A n s w e r : 3 5 . 2 3 ± 0 . 0 8 mm X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 92 ENGINEERING DRAWING STANDARDS MANUAL d . P r e c is io n Ro u n d in g ( I n s id e ) W h e n c o n v e r t e d , t o l e r a n c e s mu s t n e v e r e x c e e d t h e o r i g i n a l l y s p e c if ie d limits ( a s in th e c a s e w h e r e th e “ c o n v e r te d ” p a r ts a r e to b e in s p e c te d b y g a g e s ma d e f o r th e o r ig in a l p a r ts ) . T h e r o u n d - o f f mu s t b e s u c h th a t th e n e w d ime n s io n s s h a ll lie in s id e t h e o r i g i n a l t o l e r a n c e l i mi t s . T h i s ma y b e a c c o mp l i s h e d b y c o n v e r tin g th e ma x imu m a n d min imu m limits e x a c tly, a n d th e n r o u n d in g th e u p p e r limit to th e n e x t lo w e r v a lu e a n d r o u n d in g t h e l o w e r l i mi t t o t h e n e x t h ig h e r v a l u e . E x a mp l e : C o n v e r t 0 . 8 7 7 f r o m i n c h e s t o mi l l i me t e r s w i t h o u t 0.874 v io la t i o n o f t h e o r i g i n a l l i mi t s : 0.877 x 25.4 = 22.2758; 0.874 x 25.4 = 22.1996 T h e to ta l o r ig in a l to le r a n c e is 0 . 0 0 3 , w h ic h lie s b e tw e e n 0 . 0 0 0 4 and 0.004 and, according to the preceding table, should be r o u n d e d t o 0 . X X X mi l l i me t e r s . Answer: 2 2 . 2 7 5 mm 2 2 . 2 0 0 mm N o t e t h a t 2 2 . 2 7 5 8 i s n o t r o u n d e d t o 2 2 . 2 7 6 mm b e c a u s e i t w o u l d violate the “inside” rule. 10.3. Design References a. F i n i s h e s o f M e t a l a n d W o o d S u r f a c e s : M I L - S T D - 1 7 1 . R e f e r e n c e d o c u me n t ( f o r a w o r k in g k n o w le d g e ) : MI L - H D BK - 1 3 2 A . b . G e a r s /G e a r Cla s s if ic a tio n a n d I n s p e c tio n H a n d b o o k T o le r a n c e s a n d Me a s u r in g Me th o d s f o r U n a s s e mb le d S p u r a n d H e lic a l G e a r s ( in c lu d in g me tr ic e q u iv a le n ts ) : A G MA 2 0 0 0 - A - 8 8 . c. G e a r Cla s s if ic a tio n , Ma te r ia ls , a n d Me a s u r in g Me th o d s f o r Be v e l, H yp o id , F in e P itc h W o r mg e a r in g , a n d Ra c k s O n ly a s U n a s s e mb le d G e a r s : A G MA 3 9 0 . 0 3 A - 8 8 . d . O p tic s /G e n e r a l S p e c if ic a tio n G o v e r n in g th e Ma n u f a c tu r e , A s s e mb ly, a n d I n s p e c tio n o f O p tic a l Co mp o n e n ts f o r F ir e Co n tr o l I n s tr u me n ts : MI L - O - 1 3 8 3 0 . e. S o ld e r in g /G e n e r a l S p e c if ic a tio n f o r S o ld e r in g P r o c e s s ( f o r n o n e le c tr ic a l a p p lic a tio n s ) : MI L - S - 6 8 7 2 . f. S p r in g s /D r a w in g Re q u ir e me n ts f o r Me c h a n ic a l S p r in g s : MI L - S T D - 2 9 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 93 10.4. Control of Surface Roughness 10.4.1. Surface Texture Surface texture, surface roughness, waviness, and lay shall be in accordance with ANSI B46.1-1985 (or later revisions). The s ymb o ls b e lo w a r e e x a mp le s o f mic r o in c h f in is h s ymb o ls a n d th e ir mic r o me t e r e q u i v a l e n t s t h a t a r e mos t c o mmo n l y u s e d . R e f e r t o t h e A N S I B4 6 . 1 - 1 9 8 5 f o r f u r th e r d a ta s u c h a s w a v in e s s a n d la y. Me tr ic e q u iv a le n ts w ith r o u g h n e s s g r a d e n u mb e r s to th e f o llo w in g a r e f o u n d in p a r a g r a p h 1 0 . 2 . 1 c o n p a g e 8 7 . Mic r o in c h Mic r o me te r Ro u g h Ma c h in in g . Mating Surfaces. Mo v in g P a r ts . Precision Parts. P o lis h e d P a r ts . L a p p e d P a r ts . 10.4.2. Surface Texture Symbols S y mb o l s d e p i c t i n g a c c e p t a b l e s u r f a c e c o n d i t i o n s s h a l l b e i n accordance with ANSI Y14.36-1978 (R 1987) (or later revisions). 10.4.3. Surface Texture Standards Co p ie s o f b o th A N S I B4 6 . 1 - 1 9 8 5 a n d A N S I Y 1 4 . 3 6 - 1 9 7 8 a r e available from A me r i c a n N a t i o n a l S t a n d a r d s I n s t i t u t e 1 4 3 0 Br o a d w a y New York, NY 10018 10.5. Thread Specifications S c r e w - th r e a d c o n v e n tio n s , me th o d s o f s p e c if yin g , a n d d e s ig n s h a ll b e in accordance with the following specifications: a. Screw-Thread Standards for Federal Services, Federal Standard F E D - S T D - H 2 8 , d e ta ile d s ta n d a r d s a s f o llo w s : X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 94 ENGINEERING DRAWING STANDARDS MANUAL F E D - S T D - H 2 8 / 1 N o me n c l a t u r e , D e f i nitio n s , a n d L e tte r S ymb o ls f o r S c r e w Threads. F E D - S T D - H 2 8 / 2 U n i f i e d T h r e a d F o r m an d T h r e a d S e r i e s f o r B o l t s , S c r e w s , N u ts , T a p p e d H o le s , a n d G e n e r a l A p p lic a tio n s . F E D - S T D - H 2 8 /3 U n if ie d T h r e a d s o f S p e c ia l D ia me te r , P itc h e s , a n d L e n g th s o f E n g a g e me n t. F E D - S T D - H 2 8 /4 Co n tr o lle d Ra d iu s Ro o t S c r e w T h r e a d s , U N J S ymb o l. F E D - S T D - H 2 8 /5 U n if ie d Min ia tu r e S c r e w T h r e a d s . F E D - S T D - H 2 8 /6 G a g e s a n d G a g in g f o r U n if ie d S c r e w T h r e a d s . F E D - S T D - H 2 8 /7 A me r ic a n S ta n d a r d P ip e T h r e a d s ( e x c e p t D r y s e a l a n d H o s e Co u p lin g T yp e s ) . F E D - S T D - H 2 8 / 8 D r ys e a l A me r i c a n S ta n d a r d P ip e T h r e a d s . F E D - S T D - H 2 8 /9 G a s C y l i n d e r V a l v e O u t l e t a n d I n l e t T h r e a d s . F E D - S T D - H 2 8 /1 0 A me r ic a n N a tio n a l H o s e Co u p lin g a n d F ir e - H o s e Co u p lin g Threads. F E D - S T D - H 2 8 /1 1 H o s e Co n n e c tio n s f o r W e ld in g a n d Cu ttin g E q u ip me n t. F E D - S T D - H 2 8 / 1 2 A c me T h r e a d s . F E D - S T D - H 2 8 /1 3 S tu b A c me T h r e a d s . F E D - S T D - H 2 8 /1 4 N a tio n a l Bu ttr e s s T h r e a d s . F E D - S T D - H 2 8 /1 5 A me r ic a n S ta n d a r d Ro lle d T h r e a d s f o r S c r e w S h e lls o f E l e c t r i c L a mp H o l d e r s a n d f o r S c r e w S h e l l s o f U n a s s e mb l e d L a mp B a s e s . FED-STD-H28/16 Microscope Objective and Nosepiece Threads, 0.800— 3 6 A MO . F E D - S T D - H 2 8 /1 7 S u r v e yin g I n s tr u me n t Mo u n tin g T h r e a d s . F E D - S T D - H 2 8 /1 8 P h o to g r a p h ic E q u ip me n t T h r e a d s . F E D - S T D - H 2 8 /1 9 Mis c e lla n e o u s T h r e a d s . F E D - S T D - H 2 8 / 2 0 I n s p e c t i o n M e t h o d s f or A c c e p t a b i l i t y o f U N , U N R , U N J , M , and MJ Screw-Threads. F E D - S T D - H 2 8 /2 1 A Me tr ic S c r e w - T h r e a d S ta n d a r d s . F E D - S T D - H 2 8 / 2 2 Me t r i c S c r e w - T h r e a d G a g e s . b . G e n e r a l S p e c i f i c a t i o n f o r S c r e w T h r e a d s , S t a n d a r d , O p t i mu m S e l e c t e d S e r i e s , Military Specification MIL-S-7742. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 95 c. G e n e r a l Re q u ir e me n ts f o r P ip e T h r e a d s , T a p e r , A e r o n a u tic a l N a tio n a l F o r m, S y mb o l - A N P T , M i l i t a r y S p e c i f i c a t i o n M I L - P - 7 1 0 5 . d . G e n e r a l S p e c if ic a tio n f o r S c r e w T h r e a d s , Co n tr o lle d Ra d iu s Ro o t W ith I n c r e a s e d M i n o r D i a me t e r , Mi l i t a r y S p e c i f i c a t i o n M I L - S - 8 8 7 9 . e. Me tr ic S c r e w T h r e a d s M P r o f ile A N S I /A S ME B1 . 1 3 M- 1 9 8 3 . f. Me tr ic S c r e w T h r e a d s MJ P r o f ile A N S I B1 . 2 1 M- 1 9 7 8 . g . S c r e w T h r e a d Re p r e s e n ta tio n s ( Co n v e n tio n s a n d Me th o d s o f S p e c if yin g ) , A me r ic a n N a tio n a l S ta n d a r d A N SI Y 1 4 . 6 - 1 9 7 8 , a n d A N S I Y 1 4 . 6 a M- 1 9 8 1 ( Me tr ic S u p p le me n t) . 10.6. Welding—Fusion and Resistance 10.6.1. General T h e s ta n d a r d d e f in itio n f o r th e t e r m “ w e l d ” i s a l o c a l i z e d c o a l e s c e n c e o f me t a l s w h e r e c o a l e s c e n c e i s p r o d u c e d b y h e a t i n g t o s u ita b le te mp e r a tu r e s , w ith o r w ith o u t th e a p p lic a tio n o f p r e s s u r e , a n d w i t h o r w i t h o u t t h e u s e o f f i l l e r me t a l . T h e f i l l e r me t a l e i t h e r h a s a me ltin g p o in t a p p r o x ima te ly th e s a me a s th e b a s e me ta l o r h a s a me ltin g p o in t b e lo w th a t o f th e b a s e me ta l b u t a b o v e 8 0 0 d e g r e e s F . F o r s ta n d a r d w e ld in g s p e c if ic a tio n c a llo u ts , r e f e r to “ J o in in g Me th o d N o te s , ” p a r a g r a p h 2 . 4 . 4 . 3 o n p a g e 1 8 . 10.6.2. Basic Weld Symbols and Their Location Significance B a s i c w e l d s y mb o l s a n d t h e i r l o c a t i o n s i g n i f i c a n c e s h a l l b e i n accordance with ANSI AWS A 2.4-86 (or later revisions). Copies are available from A me r i c a n W e l d i n g S o c i e t y 2 5 0 1 N W 7 th S tr e e t Mia mi, F L 3 3 1 2 5 10.7. Outgassing of Spacecraft Materials N A S A Re f e r e n c e P u b lic a tio n , RP - 1 1 2 4 , N o v e mb e r 1 9 9 0 , O u tg a s s in g D a ta fo r S e l e c t i n g S p a c e c r a f t M a t e r i a l s, c o v e r s a w id e r a n g e o f ma te r ia ls , in c lu d in g a d h e s iv e s , c o mp o u n d s , c o a tin g s , in s u la tio n , a n d v a r io u s o th e r ma te r ia ls . A s p r e s e n t e d , t h e d a t a r e p r e s e n t t h e “ t o ta l ma s s l o s s ” ( T M L ) a n d t h e “ C o l l e c t e d Volatile Condensable Materials” (CVCM), as derived from tests at 398 K (125 C) f o r 2 4 h o u r s in v a c u u m p e r A S T M E 5 9 5 - 8 4 . T h e p u b lic a tio n c a n b e p u r c h a s e d a s d o c u me n t n u mb e r N - 8 8 - 1 0 1 1 7 f r o m X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 96 ENGINEERING DRAWING STANDARDS MANUAL N a tio n a l T e c h n ic a l I n f o r ma t i o n S e r v i c e ( N T I S ) 5 2 8 5 P o r t Ro ya l Ro a d S p r in g f ie ld , V A 2 2 1 5 1 10.8. Standards and Specifications Index 10.8.1. National Bureau of Standards NBS IR81-229, A Technical Briefing on the Initial Graphics Exchange Specification (IGES). 10.8.2. Federal Co mme r c e Co mmis s io n Re g u la tio n 4 9 - CF R7 1 - 7 8 Co mme r c e Co mmis s io n S a f e ty Re g u la tio n s C o mme r c i a l a n d G o v e r n me n t E n t i t y ( C A G E ) P u b l i c a t i o n H 4 / H 8 S e c tio n A : N a me to CA G E Co d e ; S e c tio n B: CA G E Co d e to N a me ( f o r me r l y F S C M H 4 a n d F S C N M H 8 ) . F E D - S T D - H 2 8 /1 , N o me n c la tu r e , D e f in itio n s , a n d L e tte r S ymb o ls for Screw Threads. F E D - S T D - H 2 8 /2 , U n if ie d T h r e a d F o r m a n d T h r e a d S e r ie s f o r Bo lts . F E D - S T D - H 2 8 /3 , U n if ie d T h r e a d s o f S p e c i a l D i a me t e r , P i t c h e s , a n d L e n g th s o f E n g a g e me n t. F E D - S T D - H 2 8 /4 , Co n tr o lle d Ra d iu s Ro o t S c r e w T h r e a d s , U N J S ymb o l. F E D - S T D - H 2 8 /5 , U n if ie d Min ia tu r e S c r e w T h r e a d s . F E D - S T D - H 2 8 /6 , G a g e s a n d G a g in g f o r U n if ie d S c r e w T h r e a d s . F E D - S T D - H 2 8 /7 , A me r ic a n S ta n d a r d P i p e T h r e a d s ( e x c e p t D r y s e a l a n d H o s e Co u p lin g T yp e s . F E D - S T D - H 2 8 / 8 , D r ys e a l A me r i c a n S t a n d a r d P i p e T h r e a d s . F E D - S T D - H 2 8 /9 , G a s C y l i n d e r V a l v e O u t l e t a n d I n l e t T h r e a d s . F E D - S T D - H 2 8 /1 0 , A me r ic a n N a tio n a l H o s e Co u p lin g a n d F ir e - Hose. F E D - S T D - H 2 8 /1 1 , H o s e Co n n e c tio n s f o r W e ld in g a n d Cu ttin g E q u ip me n t. F E D - S T D - H 2 8 / 1 2 , A c me T h r e a d s . F E D - S T D - H 2 8 /1 3 , S tu b A c me T h r e a d s . F E D - S T D - H 2 8 /1 4 , N a tio n a l Bu ttr e s s T h r e a d s . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 97 F E D - S T D - H 2 8 /1 5 , A me r ic a n S ta n d a r d Ro lle d T h r e a d s f o r S c r e w S h e l l s f o r E l e c t r i c L a mp H o l d e r s & U n a s s e mb l e d L a mp B a s e s . FED-STD-H28/16, Microscope Objective and Nosepiece Threads. F E D - S T D - H 2 8 /1 7 , S u r v e yin g I n s tr u me n t Mo u n tin g T h r e a d s . F E D - S T D - H 2 8 /1 8 , P h o to g r a p h ic E q u ip me n t T h r e a d s . F E D - S T D - H 2 8 /1 9 , Mis c e lla n e o u s T h r e a d s . FED-STD-H28/20, Inspection Methods for Acceptability of UN, U N R , U N J , M, a n d MJ S c r e w - T h r e a d s . F E D -S T D -H 2 8 /2 1 , Me tr ic S c r e w - T h r e a d S ta n d a r d s . F E D - S T D - H 2 8 / 2 2 , Me t r i c S c r e w - T h r e a d G a g e s . F E D -S T D -5 9 5 , Co lo r s . Q Q - B- 6 5 4 , Br a z in g A llo ys , S ilv e r . Q Q - C- 3 2 0 , Ch r o miu m P la tin g ( E le c tr o d e p o s ite d ) . Q Q - P - 3 5 , P a s s iv a tio n T r e a tme n ts f o r Co r r o s io n - Re s is ta n t S te e l. Q Q - P - 4 1 6 , P la tin g , Ca d miu m ( E le c tr o d e p o s ite d ) . Q Q - S - 3 6 5 , S ilv e r P la tin g ( E le c tr o d e p o s ite d ) , G e n e r a l Re q u ir e me n ts for. Q Q - S - 5 7 1 , S o ld e r , T in A llo y, T in - L e a d A llo y, a n d L e a d A llo y. S a f e ty Re g u la tio n s 4 9 - CF R7 1 - 7 8 , Co mme r c e Co mmis s io n S a f e ty Re g u la tio n s . 10.8.3. Industrial A G MA 3 9 0 . 0 3 A - 8 8 , G e a r Cla s s if ic a tio n a n d I n s p e c tio n H a n d b o o k T o le r a n c e s a n d Me a s u r in g Me th o d s f o r Be v e l, H yp o id , F in e P itc h W o r mg e a r in g , a n d Ra c k s . A G MA 2 0 0 0 - A - 8 8 , G e a r Cla s s if ic a tio n a n d I n s p e c tio n H a n d b o o k T o le r a n c e s a n d Me a s u r in g Me th o d s f o r U n a s s e mb le d S p u r a n d H e lic a l G e a r s ( I n c lu d in g Me tr ic E q u iv a le n ts ) . A MS 2 4 8 8 , A n o d ic T r e a tme n t o f T ita n iu m a n d T ita n iu m A llo ys . A N S I A W S A 2 . 4 - 1 9 8 6 , S ymb o ls f o r W e ld in g a n d N o n d e s tr u c tiv e T e s tin g . A N S I /A S ME B1 . 1 3 M- 1 9 8 3 , Me tr ic S c r e w T h r e a d s M P r o f ile . A N S I B1 . 2 1 M- 1 9 7 8 , Me tr ic S c r e w T h r e a d s MJ P r o f ile . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 98 ENGINEERING DRAWING STANDARDS MANUAL A N S I B4 . 2 - 1 9 7 8 , P r e f e r r e d Me tr ic L imits a n d F its . A N S I B4 . 3 - 1 9 7 8 G e n e r a l T o le r a n c e s f o r Me tr ic D ime n s io n e d P r o d u c ts . ANSI B46.1-1985, Surface Texture (Surface Roughness, Waviness, a n d L a y) . A N S I Y 1 4 . 1 5 - 1 9 6 6 ( R- 7 3 ) , E le c tr ic a l a n d E le c tr o n ic s D ia g r a ms . A N S I Y 1 4 . 1 5 a - 1 9 7 1 , I n te r c o n n e c tio n D ia g r a ms . A N S I Y 1 4 . 1 5 b - 1 9 7 3 , E le c tr ic a l a n d E le c tr o n ic s D ia g r a ms . A N S I Y 1 4 . 2 M- 1 9 7 9 , L in e Co n v e n tio n s a n d L e tte r in g . A N S I Y 1 4 . 2 6 M- 1 9 8 7 , D ig ita l Re p r e s e n ta tio n f o r Co mmu n ic a tio n o f Product Definition Data. A N S I Y 1 4 . 3 6 - 1 9 7 8 ( R 1 9 8 7 ) , S u r f a c e T e x t u r e S y mb o l s . A N S I Y 1 4 . 5 M- 1 9 8 2 , D ime n s io n in g a n d T o le r a n c in g . A N S I Y 1 4 . 6 - 1 9 7 8 , S c r e w T h r e a d Re p r e s e n ta tio n . A N S I Y 1 4 . 6 A M- 1 9 8 1 , S c r e w T h r e a d Re p r e s e n ta tio n ( Me tr ic S u p p le me n t) . ANSI Y32.2-1975, IEEE STD 315-1975, CSA Z99-1975, Graphic S y mb o l s f o r E l e c t r i c a l an d E l e c t r o n i c s D i a g r a ms . A N S I Y 3 2 . 9 - 1 9 7 2 , G r a p h ic S ymb o ls f o r E le c tr ic a l W ir in g a n d L a yo u t D i a g r a ms U s e d i n A r c h i t e c t u r e a n d B u i l d i n g Co n s tr u c tio n . A S T M D 4 1 2 6 , V a p o r D e g r e a s in g . A S T M E 3 8 0 - 9 1 a , S ta n d a r d P r a c tic e f o r U s e o f th e I n te r n a tio n a l S y s t e m o f U n i t s ( T h e M o d e r n i z e d M e t r i c S y s t e m) . A S T M E 5 9 5 - 8 4 , S ta n d a r d T e s t Me th o d f o r T o ta l Ma s s L o s s a n d C o l l e c t e d V o l a t i l e C o n d e n s i b l e M at e r i a l s F r o m O u t g a s s i n g i n a V a c u u m E n v ir o n me n t. N - 8 8 - 1 0 1 1 7 , N a tio n a l T e c h n ic a l I n f o r ma tio n S e r v ic e —O u tg a s s in g Data for Selecting Spacecraft Materials. N A S 1 0 0 0 0 , N A D o c u me n ts P r e p a r a tio n a n d Ma in te n a n c e in S I ( Me t r i c ) U n i t s . 10.8.4. Military D O D - S T D - 1 8 6 6 , S o ld e r in g S p e c if ic a tio n . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 99 MI L - A - 8 6 2 5 , A n o d ic Co a tin g s , f o r A lu min u m a n d A lu min u m Alloys. MI L - B- 7 8 8 3 , Br a z in g o f S te e ls , Co p p e r , Co p p e r A llo ys , N ic k e l A llo ys , A lu min u m, a n d A lu min u m A llo ys . MI L - C- 5 5 4 1 , Ch e mic a l Co n v e r s io n Co a tin g s o n A lu min u m a n d A lu min u m A llo ys . MI L - C- 1 2 9 6 8 , Co a tin g s , P h o s p h a te , P r o te c tiv e . MI L - C- 1 3 9 2 4 , Co a tin g , O x id e , Bla c k , f o r F e r r o u s Me ta ls . MI L -D -5 4 8 0 , D a ta , E n g in e e r in g a n d T e c h n ic a l, Re p r o d u c tio n R e q u i r e me n t s f o r . MI L - H - 6 0 8 8 , H e a t T r e a tme n t o f A lu min u m A llo ys . MI L - H - 6 8 7 5 , H e a t T r e a tme n t o f S te e l, P r o c e s s e s f o r . M I L - H - 7 1 9 9 , H e a t T r e a t me n t o f W r o u g h t C o p p e r - B e r y l l i u m A l l o y s , Process for. MI L - H D BK - 1 3 2 A , P r o te c tiv e F in is h e s f o r Me ta l a n d W o o d Surfaces. MI L - I - 4 5 9 3 2 /1 , I n s e r t, S c r e w T h r e a d - T h in W a ll, L o c k e d in . MI L - L - 4 6 0 1 0 , L u b r ic a n t, S o lid F ilm, H e a t Cu r e d , Co r r o s io n . MI L -M-9 8 6 8 , Mic r o f ilmin g o f E n g in e e r in g D o c u me n ts , 3 5 MM, R e q u i r e me n t s f o r . MI L - N - 4 5 9 3 8 /1 , N u t, P la in , Clin c h ( S e lf - Clin c h in g , Ro u n d ) . MI L - O - 1 3 8 3 0 , O p tic a l Co mp o n e n ts f o r F ir e Co n tr o l I n s tr u me n ts ; G e n e r a l S p e c if ic a tio n G o v e r n in g th e Ma n u f a c tu r in g , A s s e mb ly, a n d I n s p e c tio n o f . MI L - P - 1 1 6 , P r e s e r v a tio n , Me th o d s o f . MI L -P -7 1 0 5 , P ip e T h r e a d s , T a p e r , A e r o n a u tic a l N a tio n a l F o r m, S ymb o l A N P T , G e n e r a l Re q u ir e me n t f o r . MI L - R- 2 8 0 0 2 , Ra s te r G r a p h ic s Re p r e s e n ta tio n in Bin a r y F o r ma t, R e q u i r e me n t s f o r . MI L -S -6 8 7 2 , G e n e r a l S p e c if ic a tio n f o r S o ld e r in g P r o c e s s ( n o n - electrical). MI L -S -7 7 4 2 , S c r e w T h r e a d s , S T D , O p timu m S e le c te d S e r ie s , General Specification for. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 100 ENGINEERING DRAWING STANDARDS MANUAL MI L -S -8 8 7 9 , S c r e w T h r e a d s , Co n tr o lle d Ra d iu s Ro o t W ith I n c r e a s e d M i n o r D i a me t e r ; G e n e r a l S p e c i f i c a t i o n f o r . MI L -S T D -1 2 , A b b r e v ia tio n s . MI L -S T D -2 9 , D r a w in g Re q u ir e me n ts f o r Me c h a n ic a l S p r in g s . MI L - S T D - 1 0 0 , E n g in e e r in g D r a w in g P r a c tic e s . M I L -S T D -1 7 1 , F i n i s h e s o f M e t a l a n d W o o d S u r f a c e s . MI L - S T D - 4 0 3 , P r e p a r a tio n f o r a n d I n s ta lla tio n o f Riv e ts a n d Screws, Rocket and Missile Structures. MI L -S T D -0 0 4 5 3 , Ra d io g r a p h ic I n s p e c tio n . MI L - S T D - 6 4 5 , D ip Br a z in g o f A lu min u m A llo ys . MI L -S T D -2 1 5 4 , U ltr a s o n ic I n s p e c tio n . M I L -S T D -2 2 1 9 , F u s i o n W e l d i n g f o r A e r o s p a c e A p p l i c a t i o n s . MI L - T - 7 1 3 , T w in e , F ib r o u s ; I mp r e g n a te d , L a c in g a n d T yin g . MI L - W - 4 6 1 3 2 , E le c tr o n ic Be a m W e ld in g . MS 3 3 5 3 7 , I n s e r t, S c r e w T h r e a d , H e lic a l Co il, Co a r s e a n d F in e T h r e a d , S ta n d a r d D ime n s io n s f o r . MS 5 1 8 3 5 , I n s e r ts a n d S tu d s , L o c k e d I n - K e y L o c k e d , H o le D ime n s io n s f o r a n d A s s e mb ly o f . 10.8.5. NASA G S F C 7 3 1 - 0 0 0 5 - 8 3 , G e n e r a l F r a c tu r e Co n tr o l P la n f o r P a ylo a d s Using the Space Transportation System (STS). G S F C- G H B- 2 2 0 0 . 2 , S c ie n tif ic a n d T e c h n ic a l I n f o r ma tio n Handbook. G S F C S - 2 5 0 - 3 , G u id e f o r th e P r e p a r a tio n o f S p e c if ic a tio n s . G S F C S - 3 1 3 - 0 0 9 , F lu o r e s c e n t P e n e tr a n t T e s t Me th o d Re q u ir e me n ts and Guidelines. G S F C S - 3 1 3 - 1 0 0 , G S F C F a s te n e r I n te g r ity Re q u ir e me n ts . G S F C- S T D - 2 5 6 - W E - 1 , F o r Y o u r I n f o r ma tio n , A Co mp e n d iu m o f G e n e r a l Re f e r e n c e D a ta f o r T e c h n ic a l W r itin g a n d E d itin g . G S F C X - 6 7 3 - 6 4 - 1 F , G S F C E n g in e e r in g S ta n d a r d s D e s ig n Ma n u a l. N A S A Re f e r e n c e P u b lic a tio n RP - 1 1 2 4 , N o v e mb e r 1 9 9 0 , O u tg a s s in g Data for Selecting Spacecraft Materials. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 101 N H B 5 3 0 0 . 4 ( 3 A - l) 1 9 7 6 , Re q u ir e me n ts f o r S o ld e r e d E le c tr ic a l Co n n e c tio n s . N MI 8 0 1 0 2 A , U s e o f th e Me tr ic S ys te m o f Me a s u r e me n t in N A S A P r o g r a ms . N S T S 0 7 7 0 0 , S ys te m D e s c r ip tio n a n d D e s ig n D a ta , I n te r v e h ic u la r Activities. 10.9. Standards and Specifications Numerical Index Specification Page A G MA 2 0 0 0 - A - 8 8 , G e a r Cla s s if ic a tio n a n d I n s p e c tio n H a n d b o o k T o le r a n c e s a n d Me a s u r in g Me th o d s f o r U n a s s e mb le d S p u r a n d H e lic a l G e a r s ( I n c lu d in g Me tr ic E q u iv a le n ts ) . 92 A G MA 3 9 0 . 0 3 A - 8 8 , G e a r Cla s s if ic a tio n Ma te r ia ls a n d Me a s u r in g Me th o d s f o r Be v e l, H yp o id , F in e P itc h W o r mg e a r in g , a n d Ra c k s . 92 A MS 2 4 8 8 , A n o d ic T r e a tme n t o f T ita n iu m a n d T ita n iu m Alloys. 19 A N S I A W S A 2 . 4 - 8 6 , S ymb o ls f o r W e ld in g a n d N o n d e s tr u c tiv e T e s tin g . 95 A N S I B1 . 2 1 M- 1 9 7 8 , Me tr ic S c r e w T h r e a d s MJ P r o f ile 95 Specification Page A N S I B4 . 2 - 1 9 7 8 , P r e f e r r e d Me tr ic L imits a n d F its . 89 ANSI B46.1-1985, Surface Texture (Surface Roughness, W a v in e s s , a n d L a y) . 93 A N S I Y 1 4 . 1 5 - 1 9 6 6 ( R- 7 3 ) , E le c tr ic a l a n d E le c tr o n ic s D ia g r a ms . 43 A N S I Y 1 4 . 1 5 a - 1 9 7 1 , I n te r c o n n e c tio n D ia g r a ms . 43 A N S I Y 1 4 . 1 5 b - 1 9 7 3 , E le c tr ic a l a n d E le c tr o n ic s D ia g r a ms . 43 A N S I Y 1 4 . 2 M- 1 9 7 9 , L in e Co n v e n tio n s a n d L e tte r in g . 35 A N S I Y 1 4 . 2 6 M- 1 9 8 7 , D ig ita l Re p r e s e n ta tio n f o r Co mmu n ic a tio n o f P r o d u c t. 84 A N S I Y 1 4 . 3 6 - 1 9 7 8 ( R 1 9 8 7 ) , S u r f a c e T e x t u r e S y mb o l s . 93 A N S I Y 1 4 . 5 M- 1 9 8 2 , D ime n s io n in g a n d T o le r a n c in g . 1, 7, 16, 28, 85, 87, 107, 108 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 102 ENGINEERING DRAWING STANDARDS MANUAL A N S I Y 1 4 . 6 - 1 9 7 8 , S c r e w T h r e a d Re p r e s e n ta tio n . 95 A N S I Y 1 4 . 6 a M- 1 9 8 1 , S c r e w T h r e a d Re p r e s e n ta tio n ( Me tr ic S u p p le me n t) . 95 ANSI Y32.2-1975, IEEE STD 315-1975, CSA Z99-1975, G r a p h i c S y mb o l s f o r E l e c t r i c a l a n d E le c tr o n ic D ia g r a ms . 43 A N S I Y 3 2 . 9 - 1 9 7 2 , G r a p h ic S ymb o ls f o r E le c tr ic a l W ir in g a n d L a yo u t D ia g r a ms U s e d in A r c h ite c tu r e a n d Bu ild in g Co n s tr u c tio n . 43 A N S I /A S ME B1 . 1 3 M- 1 9 8 3 , Me tr ic S c r e w T h r e a d s M P r o f ile 95 A S T M D 4 1 2 6 , V a p o r D e g r e a s in g . 20 A S T M E 3 8 0 - 9 1 a , S ta n d a r d P r a c tic e f o r U s e o f th e International System of Units (The Modernized Metric S ys te m) . 86 A S T M E 5 9 5 - 8 4 , S ta n d a r d T e s t Me th o d f o r T o ta l Ma s s L o s s and Collected Volatile Condensible Materials From O u tg a s s in g in a V a c u u m E n v ir o n me n t. 95 Co mme r c e Co mmis s io n Re g u la tio n 4 9 - CF R7 1 - 7 8 , Co mme r c e Co mmis s io n S a f e ty Re g u la tio n s . 22 C o mme r c i a l a n d G o v e r n me n t E n t i t y ( C A G E ) P u b l i c a t i o n H 4 /H 8 . 7, 72, 75 Specification Page D O D - S T D - 1 8 6 6 , S o ld e r in g S p e c if ic a tio n . 18 F E D - S T D - 5 9 5 , Co lo r s 19 F E D - S T D - H 2 8 /1 , N o me n c la tu r e , D e f in itio n s , a n d L e tte r S ymb o l s f o r S c r e w T h r e a d s . 93 F E D - S T D - H 2 8 /2 , U n if ie d T h r e a d F o r m a n d T h r e a d S e r ie s f o r Bo lts , S c r e w s , N u ts , T a p p e d H o le s , a n d G e n e r a l A p p lic a tio n s . 93 F E D - S T D - H 2 8 / 3 , U n i f i e d T h r e a d s o f S p e c i a l D i a me t e r , P itc h e s , a n d L e n g th s o f E n g a g e me n ts . 93 F E D - S T D - H 2 8 /4 , Co n tr o lle d Ra d iu s Ro o t S c r e w T h r e a d s , U N J S ymb o l. 93 F E D - S T D - H 2 8 /5 , U n if ie d Min ia tu r e S c r e w T h r e a d s . 93 F E D - S T D - H 2 8 /6 , G a g e s a n d G a g in g f o r U n if ie d S c r e w Threads. 93 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 103 F E D - S T D - H 2 8 / 7 , A me r i c a n S t a n d a r d P ip e T h r e a d s ( e x c e p t D r ys e a l a n d H o s e Co u p lin g T yp e s ) . 93 F E D - S T D - H 2 8 /8 , D r ys e a l A me r ic a n S ta n d a r d P ip e T h r e a d s . 93 F E D - S T D - H 2 8 /9 , G a s C y l i n d e r V a l v e O u t l e t a n d I n l e t Threads. 93 F E D - S T D - H 2 8 /1 0 , A me r ic a n N a tio n a l H o s e Co u p lin g a n d F ir e - H o s e Co u p lin g T h r e a d s . 93 F E D - S T D - H 2 8 /1 1 , H o s e Co n n e c tio n s f o r W e ld in g a n d Cu ttin g E q u ip me n t. 93 F E D - S T D - H 2 8 /1 2 , A c me T h r e a d s . 93 F E D - S T D - H 2 8 /1 3 , S tu b A c me T h r e a d s . 93 F E D - S T D - H 2 8 /1 4 , N a tio n a l Bu ttr e s s T h r e a d s . 93 F E D - S T D - H 2 8 /1 5 , A me r ic a n S ta n d a r d Ro lle d T h r e a d s f o r S c r e w S h e l l s o f E l e c t r i c L amp H o l d e r s a n d f o r S c r e w S h e l l s o f U n a s s e mb l e d L a mp B a s e s . 93 FED-STD-H28/16, Microscope Objective and Nosepiece T h r e a d s , 0 . 8 0 0 - 3 6 A MO . 93 F E D - S T D - H 2 8 /1 7 , S u r v e yin g I n s tr u me n t Mo u n tin g T h r e a d s . 93 F E D - S T D - H 2 8 /1 8 , P h o to g r a p h ic E q u ip me n t T h r e a d s . 93 Specification Page F E D - S T D - H 2 8 /1 9 , Mis c e lla n e o u s T h r e a d s . 93 FED-STD-H28/20, Inspection Methods for Acceptability of U N , U N R , U N J , M, a n d MJ S c r e w - T h r e a d s . 94 F E D - S T D - H 2 8 /2 1 A , Me tr ic S c r e w - T h r e a d S ta n d a r d s . 94 F E D - S T D - H 2 8 /2 2 , Me tr ic S c r e w - T h r e a d G a g e s . 94 G S F C 7 3 1 - 0 0 0 5 - 8 3 , G e n e r a l F r a c tu r e Co n tr o l P la n f o r Payloads Using the Space Transportation System (STS). 20 G S F C S - 2 5 0 - 3 , G u id e f o r th e P r e p a r a tio n o f S p e c if ic a tio n s . 60 G S F C S - 3 1 3 - 0 0 9 , F lu o r e s c e n t P e n e tr a n t T e s t Me th o d Re q u ir e me n ts a n d G u id e lin e s . 20 G S F C S - 3 1 3 - 1 0 0 , G S F C F a s te n e r I n te g r ity Re q u ir e me n ts . 14 G S F C S T D - 2 5 6 - W E - 1 , F o r Y o u r I n f o r ma tio n — A Co mp e n d iu m O f G e n e r a l Re f e r e n c e D a ta . 12 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 104 ENGINEERING DRAWING STANDARDS MANUAL G S F C X - 6 7 3 - 6 4 - 1 F , G S F C E n g in e e r in g D r a w in g S ta n d a r d s Manual. iii, 16, 21 MI L - A - 8 6 2 5 , A n o d ic Co a tin g s , f o r A lu min u m a n d A lu min u m Alloys. 19 MI L - B- 7 8 8 3 , Br a z in g o f S te e ls , Co p p e r , Co p p e r A llo ys , N ic k e l A llo ys , A lu min u m, a n d A lu min u m A llo ys . 18 MI L - C- 5 5 4 1 , Ch e mic a l Co n v e r s io n Co a tin g s o n A lu min u m a n d A lu min u m A llo ys . 19 MI L - C- 1 2 9 6 8 , Co a tin g s , P h o s p h a te , P r o te c tiv e . 19 MI L - C- 1 3 9 2 4 , Co a tin g , O x id e , Bla c k , f o r F e r r o u s Me ta ls . 109 MI L - D - 5 4 8 0 , D a ta , E n g in e e r in g a n d T e c h n ic a l, Re p r o d u c tio n Re q u ir e me n ts f o r . 83 MI L - H - 6 0 8 8 , H e a t T r e a tme n t o f A lu min u m A llo ys . 17, 18 MI L - H - 6 8 7 5 , H e a t T r e a tme n t o f S te e l, P r o c e s s e s f o r . 17 M I L - H - 7 1 9 9 , H e a t T r e a t me n t o f W r o u g h t C o p p e r - B e r y l l i u m A l l o ys , P r o c e s s f o r . 17 MI L - H D BK - 1 3 2 A , P r o te c tiv e F in is h e s f o r Me ta l a n d W o o d Surfaces. 92 Specification Page MI L - I - 4 5 9 3 2 /1 , I n s e r t, S c r e w T h r e a d - T h in W a ll, L o c k e d In. 21 MI L - L - 4 6 0 1 0 , L u b r ic a n t, S o lid F ilm, H e a t Cu r e d , Co r r o s io n . 2 0 , 1 0 9 MI L - M- 9 8 6 8 , Mic r o f ilmin g o f E n g in e e r in g D o c u me n ts , 3 5 mm, Re q u ir e me n ts f o r . 83 MI L - N - 4 5 9 3 8 /1 , N u t, P la in , Clin c h ( S e lf - Clin c h in g , Ro u n d ) . 21 MI L - O - 1 3 8 3 0 , O p tic a l Co mp o n e n ts f o r F ir e Co n tr o l I n s tr u me n ts ; G e n e r a l S p e c if ic a tio n G o v e r n in g th e Ma n u f a c tu r in g , A s s e mb ly, a n d I n s p e c tio n o f . 92 MI L - P - 1 1 6 , P r e s e r v a tio n , Me th o d s o f . 21, 22 MI L - P - 7 1 0 5 , P ip e T h r e a d s , T a p e r , A e r o n a u tic a l N a tio n a l F o r m, S ymb o l A N P T , G e n e r a l Re q u ir e me n ts f o r . 95 MI L - R- 2 8 0 0 2 , Ra s te r G r a p h ic s Re p r e s e n ta tio n in Bin a r y F o r ma t , R e q u i r e me n t s f o r . 83 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 105 MI L - S - 6 8 7 2 , G e n e r a l S p e c if ic a tio n f o r S o ld e r in g P r o c e s s ( n o n - e le c tr ic a l) . 92 MI L - S - 7 7 4 2 , S c r e w T h r e a d s , S T D , O p timu m S e le c te d Series, General Specification for. 94 MI L - S - 8 8 7 9 , S c r e w T h r e a d s , Co n tr o lle d Ra d iu s Ro o t w ith Increased Minor. 95 MI L - S T D - 0 0 4 5 3 , Ra d io g r a p h ic I n s p e c tio n . 20 MI L - S T D - 1 2 , A b b r e v ia tio n s . 12 MI L - S T D - 1 0 0 E , E n g in e e r in g D r a w in g P r a c tic e s . 1 MIL-STD-171, Finishes of Metal and Wood Surfaces. 18, 92 MI L - S T D - 2 1 5 4 , U ltr a s o n ic I n s p e c tio n . 20 MIL-STD-2219, Fusion Welding for Aerospace A p p lic a tio n s . 18 MI L - S T D - 2 9 , D r a w in g Re q u ir e me n ts f o r Me c h a n ic a l S p r in g s . 92 MI L - S T D - 4 0 3 , P r e p a r a tio n f o r a n d I n s ta lla tio n o f Riv e ts a n d Screws, Rocket and Missile Structures. 18 MI L - S T D - 6 4 5 , D ip Br a z in g o f A lu min u m A llo ys 18 Specification Page MI L - T - 7 1 3 , T w in e , F ib r o u s ; I mp r e g n a te d , L a c in g a n d T yin g . 22 MI L - W - 4 6 1 3 2 , E le c tr o n ic Be a m W e ld in g . 18 MS 3 3 5 3 7 , I n s e r t, S c r e w T h r e a d , H e lic a l Co il, Co a r s e a n d F in e T h r e a d , S ta n d a r d D ime n s io n s f o r . 21 MS 5 1 8 3 5 , I n s e r ts a n d S tu d s , L o c k e d I n - K e y L o c k e d , H o le D ime n s io n s f o r a n d A s s e mb ly o f . 21 N - 8 8 - 1 0 1 1 7 , N a tio n a l T e c h n ic a l I n f o r ma tio n S e r v ic e — O u t g a s s i n g D a t a C o mp i l a t i o n o f S p a c e c r a f t M a t e r i a l s . 95 N A S 1 0 0 0 0 , N A D o c u me n ts P r e p a r a tio n a n d Ma in te n a n c e in S I ( Me t r i c ) U n i t s . 86 N A S A Re f e r e n c e P u b lic a tio n , RP - 1 1 2 4 , N o v e mb e r 1 9 9 0 , O u t g a s s i n g D a t a f o r S e l e c t in g S p a c e c r a f t M a t e r i a l s . 95, 108 NBS IR81-229, A Technical Briefing on the Initial Graphics Exchange. 84 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 106 ENGINEERING DRAWING STANDARDS MANUAL N H B 5 3 0 0 . 4 ( 3 A - 1 ) 1 9 7 6 , Re q u ir e me n ts f o r S o ld e r e d E le c tr ic a l Co n n e c tio n s . 18 N MI 8 0 1 0 . 2 A , U s e o f th e Me tr ic S ys te m o f Me a s u r e me n t in N A S A P r o g r a ms . 86 N S T S 0 7 7 0 0 , S ys te m D e s c r ip tio n a n d D e s ig n D a ta , Intervehicular Activities. 108 Q Q - B- 6 5 4 , Br a z in g A llo ys , S ilv e r . 18 Q Q - C- 3 2 0 , Ch r o miu m P la tin g ( E le c tr o d e p o s ite d ) . 18 Q Q - P - 3 5 , P a s s iv a tio n T r e a tme n ts f o r Co r r o s io n - Re s is ta n t Steel. 19 Q Q - P - 4 1 6 , P la tin g , Ca d miu m ( E le c tr o d e p o s ite d ) . 18 Q Q - S - 3 6 5 , S ilv e r P la tin g ( E le c tr o d e p o s ite d ) , G e n e r a l Re q u ir e me n ts f o r . 19 Q Q - S - 5 7 1 , S o ld e r , T in A llo y, T in - L e a d A llo y, a n d L e a d Alloy. 18 S a f e ty Re g u la tio n s 4 9 - CF R7 1 - 7 8 , Co mme r c e Co mmis s io n S a f e ty Re g u la tio n s . 22 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 107 APPENDIX A. DESIGN REVIEW DOs AND DON'Ts A ll d r a w in g s s h o u ld a d h e r e to th e f o llo w in g g u id e lin e s : a. D i m e n s i o n p a r t s c o r r e c t l y . D ime n s io n in g s h a ll b e to p r ima r y o r ma tin g s u r f a c e s . U n w a n t e d b u i l d u p o f t o l e r a nc e s b e t w e e n ma t i n g s u r f a c e s s h o u l d b e a v o id e d . D i me n s i o n s t o i n s i g n if i c a n t t h e o r e t i c a l c e n t e r l i n e s c a n r e s u l t i n mis t a k e s b y t h e ma c h i n i s t , a s w e l l a s t h e i n s p e c t o r s , b e c a u s e o f t h e mu l t i p l e a d d itio n s a n d s u b tr a c tio n s r e q u ir e d to lo c a te th e f e a tu r e in r e la tio n to o th e r f e a tu r e s . W h e n e v e r p o s s ib le , d ime n s io n s s h o u ld b e le f t to r ig h t a n d b o tto m to t o p ( Q u a d r a n t I , a l l p o s i t i v e n u mb e r s ) o r f r o m d a t u ms e s t a b l i s h e d b y d e s i g n r e q u ir e me n ts . b . D o n o t d e t a i l w e l d m e n t p a r t s s e p a r a t e l y . S i n c e e a c h p a r t ma y b e f a b r i c a t e d b y a d if f e r e n t ma n u f a c tu r e r , th e r e q u ir e d to le r a n c in g typ ic a lly c a n n o t b e me t, r e s u ltin g in d e la ys a n d a d d itio n a l c o s t. D if f e r e n t p a r ts o f a w e ld me n t s h o u ld b e d r a w n o n a n I n s e p a r a b le A s s e mb ly D r a w in g ( F ig u r e 2 0 o n p a g e 4 4 ) s o th a t t h e o v e r a l l a s s e mb l y t o l e r a n c i n g i s t h e r e s p o n s i b i l i t y o f a s i n g l e ma n u f a c t u r e r . c. I m p l i e d d a t u m s a r e n o l o n g e r a l l o w e d . W h e n e v e r p o s s i b l e , s e l e c t d a t u ms th a t a r e f u n c tio n a l to th e p a r t. A d a tu m s h o u ld a lw a ys b e a s s ig n e d to a p h y s i c a l s u r f a c e o r a f e a t u r e o f s i z e . W h e n u s i n g t r u e p o s i t i o n d i me n s i o n i n g ( b a s ic d ime n s io n s ) , th e d ime n s io n s f r o m th e f e a tu r e to o th e r e d g e s a n d its p e r p e n d i c u l a r i t y r e l a t i o n s h i p t o a s ur f a c e mu s t b e i d e n t i f i e d w i t h d a t u m le tte r s . T h e c o mb in e d u s a g e o f p o s itio n a l to le r a n c in g w ith p lu s a n d min u s me t h o d s a s r e l a t e d t o b a s i c d i me n s i o n ed p a t t e r n s i s d i s c o n t i n u e d a n d r e p l a c e d w ith th e c o mp o s ite to le r a n c in g me th o d . Re f e r to A N S I Y 1 4 . 5 M- 1 9 8 2 , “ D ime n s io n in g a n d T o le r a n c in g . ” Note: A l t h o u g h t h e r e i s n o r e q u i r e me n t t h a t a l l h o l e s b e t r u e p o s i t i o n e d , i t i s p r e f e r r e d th a t h o le p a tte r n s b e tr u e p o s itio n e d , r e g a r d le s s o f u s e , s in c e to le r a n c in g s p e c if ie d in th e tr u e p o s itio n b lo c k is th e c o n tr o llin g f a c to r . d. Drawings for parts produced using templates must be properly d i m e n s i o n e d a n d t o l e r a n c e d . L a c k o f d ime n s io n in g ma y r e s u lt in in a d e q u a te s tr e s s a n a lys is , f it c h e c k in g , a n d /o r in s p e c tio n . E n g in e e r in g a n d to o lin g d r a w in g s s h o u ld b e d ime n s io n e d a lik e a n d r e la te d to o n e a n o th e r . Re f e r to to o lin g r e q u ir e d n o te s in “ D ime n s io n N ote s , ” p a r a g r a p h 2 . 4 . 4 . 1 o n p a g e 1 6 . e. U s e t h e l i s t o f m a t e r i a l f o r m a t c o r r e c t l y . T h e a s s e mb ly n u mb e r d o e s n o t g e t a n i t e m n u mb e r . W h i l e t h e ma t e r i a l i s p r o p e r l y a n i t e m o n t h e L i s t o f Ma te r ia l, o n e n d p r o d u c t d r a w in g s , th e r e is n o n e e d to s p e c if y e ith e r th e d r a w in g n u mb e r o r a n ite m n u mb e r in th e L is t o f Ma te r ia l if th e r e is o n ly o n e p a r t o r ma t e r i a l . A n i t e m w i t h t h e s a me ma t e r i a l a n d s p e c i f i c a t i o n r e q u ir e s o n ly o n e i t e m n u mb e r a n d “ A / R ” ( a s r e q u ir e d ) a s a q u a n t i t y . T h e v a r i o u s ma t e r i a l s i z e s r e q u i r e d a r e i n d i c a t e d o n t h e f i e l d o f t h e d r a w i n g , a s i s t h e c a s e o f in s e p a r a b le a s s e mb lie s ( w e ld me n ts , r iv e te d p a r ts , e tc . ) . D a s h n u mb e r s a r e r e q u ir e d o n ly w h e n th e r e is a “ s h o w n ” ( o d d n u mb e r ) a n d “ o p p o s ite ” ( e v e n n u mb e r ) , w h e n th e r e is mo r e th a n o n e a s s e mb ly v e r s io n , o r w h e n th e d r a w in g i s o f a t a b u la t e d t y p e ( r e f e r t o t y p e s o f d r a w i n g s ) . M u l t i d e t a i l d r a w i n g s a r e n o t a l l o w e d ( r e f e r t o “ D e t a i l D r a w in g , ” p a r a g r a p h 4 . 3 o n p a g e 4 1 f o r e x p la n a tio n ) . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 108 ENGINEERING DRAWING STANDARDS MANUAL f. D o n o t u s e “ S K ” ( s h o r t f o r s k e t c h ) o n a n y d r a win g t h a t is u s e d t o m a n u f a c t u r e a p a r t . U s e o n ly G S F C d r a w in g n u mb e r s w h e n u s in g th e G S F C d r a w in g f o r ma t; c o n tr a c to r d r a w in g n u mb e r s a r e u s e d o n th e c o n tr a c to r 's d r a w i n g f o r ma t . T h e M e c h a n ic a l E n g in e e r in g Br a n c h d o e s n o t c h e c k o r g iv e a p p r o v a l f o r d r a w in g s p r o d u c e d o n c o n tr a c to r f o r ma t. Co n tr a c ts s h o u ld s p e c if y th a t th e c o n tr a c to r s h a ll s u p p ly c o p ie s o f c o mp a n y s p e c if ic a tio n s w h e n u s in g c o n tr a c to r f o r ma ts . g . S p e c i f y l o w - o u t g a s s i n g m a t e r i a l s . U s e lo w - o u tg a s s in g f ilm lu b r ic a n ts f o r s p a c e f l i g h t h a r d w a r e w h e r e d i s a s s e mb l y i s l i k e l y a n d / o r g a l l i n g o f l i k e ma te r ia ls is p o s s ib le . Re f e r to N A S A RP - 1 1 2 4 , N o v e mb e r 1 9 9 0 ( o r la te r ) , O u t g a s s i n g D a t a f o r S e l e c t i n g S p a c e c r a f t M a t e r i a l s , o r to S e c tio n 1 0 , p a r a g r a p h 1 0 . 6 . 1 , p a g e 9 5 o f t h i s ma n u a l , “ O u t g a s s i n g o f S p a c e c r a f t Materials.” h . S p e c i f y t h e i d e n t i f i c a t i o n o f p a r t s . T o ma i n t a i n t r a c e a b i l i t y , a l l p a r t s s h o u l d b e id e n tif ie d b y in k s ta mp in g w ith th e G S F C d r a w in g n u mb e r , r a th e r th a n b y b a g g in g a n d ta g g in g . U s e o n ly lo w - o u tg a s s in g in k ( s p e c if y o r ig in a l s o u r c e ) a n d d o n o t o v e r c o a t. D o n o t s te e l s ta mp e n g r a v e , o r e tc h o n f lig h t h a r d w a r e t o p r e v e n t ma t e r i a l s t r e s s c o n c e n t r a t i o n s. I d e n t i c a l p a r t s w i t h d i f f e r e n t u s e s s h o u ld b e s e r ia liz e d . i. Specify the original manufacturer source of supply and complete address. L i s t t h e o r i g i n a l s o u r c e a n d c o mp l e t e a d d r e s s i n t h e G e n e r a l N o t e s , a n d f l a g them to the List of Material or Parts List. j. S p e c if y r e g a r d le s s o f f e a t u r e s ize wh e n a p p ly in g t o f ix e d lo c a t io n s . Positional tolerance should be specified as “Regardless of Feature Size” when a p p lyin g to th r e a d in s e r ts , ta p p e d h o le lo c a tio n s , a n d s lip f it d e s ig n s . k . S p e c i f y l o o s e t o l e r a n c e s w h e r e p o s s i b l e . T h e u s e o f th e tr u e p o s itio n me th o d o f d ime n s io n in g s h o u ld n o t b e mis ta k e n f o r a tig h te r to le r a n c in g c o n tr o l s ys te m. T r u e p o s itio n to le r a n c in g c a n b e a s lo o s e a s th e a p p lic a tio n s h a ll a l l o w . L o o s e t o l e r a n c e s ma k e i n s pe c t i o n e a s i e r a n d a l l o w f e w e r r e j e c t e d p a r ts . l. S p e c i f y r a d i i a n d c h a m f e r s . E d g e r a d ii, in - p la n e c o r n e r r a d ii, a n d p r o tr u s io n c h a mf e r s mu s t b e s p e c i f i e d t o s p a c e f l ig h t s t a n d a r d s i z e r eq u i r e me n t s . R e f e r t o J o h n s o n S p a c e C e n t e r d o c u me n t N S T S 0 7 7 0 0 , V o l u me X I V , A p p e n d i x 9 , “ S y s t e m D e s c r i p t i o n a n d D e s i g n D a t a I n t e r v e h i c u la r A c t i v i t i e s , ” S e c t i o n 5 . 5 , “ C r e w E q u i p me n t S a f e t y, ” f o r s i z e r e q u i r eme n ts . S p e c i f y r a d i i a t t h e b o t t o m o f c o u n te r b o r e s to p r e v e n t s h a r p c o r n e r s , w h ic h c o u ld d e v e lo p in to s tr e s s c r a c k s , p a r tic u la r ly o n f lig h t p a r ts . m. S p e c i f y i n t e r f e r e n c e r a n g e o n l y f o r p r e s s f i t s . O n ly th e a mo u n t “ . 0 0 0 X to . 0 0 0 X i n t e r f e r e n c e ” s h o u l d b e s t a te d n e x t t o t h e i t e m c a l l o u t . n . S p e c i f y a s f e w r e f e r e n c e d i m e n s i o n s a s p o s s i b l e . T o o ma n y r e f e r e n c e d ime n s io n s ma k e c h e c k in g , in s p e c tio n , a n d c o s t e s tima tin g mo r e d if f ic u lt. o . S p e c i f y p r o j e c t e d t o l e r a n c e zo n e d i m e n s i o n s w h e r e a p p l i c a b l e . A d d a p r o j e c te d to le r a n c e z o n e d ime n s io n to th e tr u e p o s itio n to le r a n c e w h e n s p e c if yin g th r e a d e d in s e r ts , ta p p e d h o le s , o r d o w e l p in s . Re f e r to A N S I Y 1 4 . 5 M- 1 9 8 2 . X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 109 p . S p e c i f y f a s t e n e r t o r q u e r e q u i r e m e n t s . T h e s e r e q u i r e me n t s ma y r e f e r t o a p r o j e c t- d e v e lo p e d s p e c if ic a tio n n u mb e r , o r f a s te n e r s iz e a n d to r q u e r e q u ir e me n ts c a n b e ta b u la te d in th e G e n e r a l N o te s a n d f la g g e d to ite m c a ll- o u ts in th e f ie ld o f th e d r a w in g . q . A v o i d d o u b l e f i x a t i o n s . A p a tte r n o f c o u n te r s u n k h o le s in o n e p a r t a n d ta p p e d h o le s in th e ma tin g p a r t le a v e s n o to le r a n c in g f o r e ith e r p a r t, r e s u ltin g in b e n d in g s tr e s s e s in th e s c r e w . I f th e s itu a tio n s h a ll a llo w , c o u n te r b o r e o n e of the parts and use a pan head screw. If not, drill out the second part and use a n u t i n p l a c e o f t a p p e d h o l e s . M a t c h ed d r i l l i n g s h o u l d b e a v o i d e d b e c a u s e o f loss of interchangeability. r. A v o i d s e v e r e g a l l i n g b e t w e e n l i k e m a t e r i a l s . T o a v o id s e v e r e g a llin g in CRES-to-CRES fastener applications, consider the following possibilities: U s e o f p h o s p h o r b r o n z e in s e r ts . U s e o f d r y f ilm lu b r ic a n t p e r MI L - G - 4 6 0 1 0 , L u b r ic a n t, S o lid F ilm, H e a t Cu r e d , Co r r o s io n I n h ib itin g ( f o r CRE S in s e r ts a n d n u ts ) . U s e o f b la c k o x id e c o a tin g p e r MI L - C- 1 3 9 2 4 ( f o r b o lts a n d s c r e w s ) . s. Avoid the use of internal, external, or split-ring lock washers. These types of washers are not used on aerospace flight projects for several reasons; the w o r s t is p o s s ib le p a r tic u la te c o n ta min a tio n . t. Avoid using silver-plated hardware around electronic applications. This c a n c a u s e c o n t a mi n a t i o n p a r t i c l e s . H o w e v e r , i t i s a c c e p t a b l e f o r a l l o t h e r a p p lic a tio n s . u. Design a part so it can be made with the least amount of machine setups possible. X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 110 ENGINEERING DRAWING STANDARDS MANUAL INDEX F o r a n a lp h a b e tic a l ( n u me r ic a l) lis tin g o f th e S ta n d a r d s a n d S p e c if ic a tio n s lis te d in th is ma n u a l, s e e S e c tio n 1 0 . 9 , p a g e 1 0 1 . A D Abbreviations ............................... 11, 12 Datum ..................................... 30, 45, 82 AFBMA ............................................. 12 I mp l i e d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 4 AGMA .............................................. 12 Design references ................................ 82 AGMA standard quality....................... 16 D e s i g n r e v i e w D o s a n d D o n 't s . . . . . . . . . . . . 1 0 4 A l t e r e d p a r t s . . . . . . . . . . . . . . . . s e e P a r ts — V e n d o r Design Selection Guide ........................ 14 Altered vendor part drawings ................... D e t a i l d r a w i n g s . . . . . . . . . . . . . . . . . . . s e e D r a w in g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s Details ............................................... 37 ANSI ................................................ 12 Identification ................................... 37 Archiving .......................................... 80 Locating .......................................... 38 ASME ............................................... 12 D i a g r a ms A s s e mb l y d r a w i n g s . . . . . . . . . . . . . . s e e D r a w in g s Electrical and electronic ................... 43 Associated lists .................................. 80 D i me n s i o n n o t e s . . . . . . . . . . . . . . . . . . . . . . . . s e e N o t e s ASTM ............................................... 13 D i me n s i o n a l t o l e r a n c e n o t e s . . . . . . . s e e N o t e s AWS ............................................ 13, 92 D ime n s io n in g M e t r i c . . . . . . . . . . . . . s e e Me tr ic d ime n s io n in g S t a t e me n t s o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2 B True position .................... 82, 104, 105 B a s i c d i me n s i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D ime n s io n in g a n d to le r a n c in g . . 8 2 , 8 4 , 1 0 4 . . . . . . . . . . s e e D ime n s io n in g — T r u e p o s itio n Metric ............................................. 83 Brazing ............................................. 18 Practices ......................................... 82 D i me n s i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 15, 16, 24, 25, 28, 55, 82, 84, 88, 104 C Conversion of .................................. 86 C A D . . . . . . . . . . . . . . . s e e Co mp u te r - a id e d d e s ig n Projected tolerance zone ................. 106 C A D - p r o d u c e d d r a w i n g s . . . . . . s e e D r a w in g s Reference ...................................... 105 Certification logs ............................... 80 D o c u me n t a t i o n ma n a g e me n t . . . . . . . . . . . . . . . . . . 7 9 C h a mf e r s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 5 Double fixations ............................... 106 Coating Notes .......................... see Notes Drafting practices ............................... 25 C o mp o s i t e ma t e r i a l d r a w i n g . . . . . . . . . . . . . . . . 5 6 D r a w i n g e l e me n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 C o mp u t e r - a i d e d d e s i g n . . . . . . . . . . . . . . . . . . . 3 3 , 8 0 Drawing flow chart............ see Flow chart . . . . s e e a l s o Drawings—Computer-aided design D r a w i n g f o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 Data files Drawing Interchange File ..................... 81 Media .......................................... 81 Drawing notes ...........................see Notes Presentation of data ......................... 80 D r a w i n g n u mb e r . . . . . . . . . . 1 , 7 , 1 0 , 4 1 , 5 8 , 6 0 Specification data ............................ 81 Source control ................................. 53 C o mp u t e r - g e n e r a t e d d a t a Specification control ........................ 54 Presentation of ................................ 80 D r a w i n g r e v i s i o n s . . . . . . . . . . . . . . . s e e Re v is io n s C o n f i g u r a t i o n ma n ag e me n t o f f i c e r . . . . . . . . 5 8 Drawing sizes ...................................... 3 C o n f i g u r a t i o n ma n a g e r . . . . . . . . . . . . . . . . . . . 5 8 , 8 0 Drawing title ...................................... 11 C o n t r a c t o r d e s i g n a ct i v i t y d r a w i n g s . . . . . . . . . . Drawing tree ....................................... 42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s D r a w in g s C o n v e r s i o n o f d i me n s i o n s . . . . . . . . . . . . . . . . . . . 8 6 Archiving ........................................ 80 C r o s s - h a t c h i n g s y mb o l . . . . . . . . . . . . . . . . . . . . . . . . 3 5 A s s e mb l y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 0 , 5 3 , 5 4 CAD-produced .................................. 8 C o mp u t e r - a i d e d d e s i g n . . . . . . . . . . . . . . . . . . . . . . 8 0 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 111 Developing and using .................... 81 EFFECTIVE SERIAL ........................ 63 Revisions ..................................... 80 EO NO. ........................................... 63 Contractor design activity .................. 1 F o r ma t s a mp l e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Detail ............................................. 41 G e n e r a l r e q u i r e me n t s . . . . . . . . . . . . . . . . . . . . . . . . 6 2 E l e c t r i c a l / E le c t r o n i c . . . . . . . . . . . . . . . . . . . . . . . . 4 3 INITIATED ..................................... 63 Engineering .................... 1, 16, 58, 104 ISSUED BY ..................................... 63 F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 NEXT ASSEMBLY ........................... 62 G o v e r n me n t D e s i g n A c t i v i t y . . . . . . . . . . . . . . . 1 N u mb e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 I n s e p a r a b l e a s s e mb l y . . . . . . . . . . . . . . . . . . . . . . . 4 4 PARTS IN PROCESS ........................... I n s t a l l a t i o n a s s e mb l y . . . . . . . . . . . . . 4 5 , 5 3 , 5 4 . . . . s e e E n g in e e r in g o r d e r — D is p o s itio n Interface control ......................... 46, 47 PROGRAM ...................................... 62 Manufacturing ................................. 54 REASON ......................................... 62 Matched-set .................................... 48 REV ................................................ 62 M e c h a n i c a l s c h e ma t i c . . . . . . . . . . . . . . . . . . . . . . 4 9 REVIEWED ..................................... 63 Modification ................................... 50 S H E E T ___O F ___ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Mo n o d e t a i l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 TITLE ............................................. 62 Multidetail ...................................... 41 TYPE OF EO ................................... 63 Multisheet .................... 3, 4, 15, 38, 65 USED ON ........................................ 62 Notes ................................... see Notes Engineering parts list ........... see Parts list N u mb e r i n g s y s t e m . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 E O . . . . . . . . . . . . . . . . . . . . . . . . . s e e E n g in e e r in g o r d e r One view ........................................ 25 E P L . . . . . . . . . . . . . . . . s e e P a r ts lis t— E n g in e e r in g Outline .................................50, 51, 54 Pencil............................................. 33 F Positioning ..................................... 33 Redrawn or replaced ........................ 67 Fastener torque ................................. 106 Scale .............................................. 32 Federal Cataloging Program ................. 54 Source control ............................ 52, 53 F e d e r a l I t e m I d e n t i f i c a t i o n N u mb e r . . . . . . . 5 4 Specification control ..............52, 53, 54 Federal standards and specifications ...... 93 Standard part .................................. 54 FIIN ..................................................... Tabulated ....................................... 54 . s e e F e d e r a l I t e m I d e n t i f i c a t i o n N u mb e r Three view ...................................... 25 F i n d n u mb e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 Tooling ................................8, 55, 104 A p p l i c a t i o n a n d l i mi t a t i o n . . . . . . . . . . . . . . . . . 7 6 Two view ........................................ 25 Definition ........................................ 76 Types of ......................................... 39 D r a w i n g r e q u i r e me n t s . . . . . . . . . . . . . . . . . . . . . . . 7 7 Vendor part System of identification .................... 76 Altered ........................................ 39 F i n d o r I t e m n u mb e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selected ....................................... 39 . . s e e e i t h e r F in d n u mb e r o r I te m n u mb e r Zoned .......................................... 4, 38 F i n d o r i t e m n u mb e r i n g . . . . . . s e e N u mb e r in g D X F . . . . . . . . . . . . s e e D r a w in g I n te r c h a n g e F ile Flow chart For drawings .................................... 79 E G E l e c t r i c a l a n d e l e c tr o n i c d i a g r a ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D i a g r a ms Galling ............................................ 106 E l e c t r i c a l a n d e l e c tr o n i c s y mb o l s . . . . . . . . . . . . . G o v e r n me n t D e s i g n A c t i v i t y D r a w i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e S ymb o ls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s E l e c t r i c a l / e l e c t ro n i c d r a w i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s E n g i n e e r i n g d r a w i n g s . . . . . . . . . . s e e D r a w in g s H Engineering order .......................... 62, 64 Heat treating notes ....................see Notes APPROVED .................................... 63 Archiving ....................................... 80 DESCRIPTION ................................ 63 I Disposition ..................................... 63 IEEE .................................................. 13 DRAWING...................................... 62 IGES..................................................... X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 112 ENGINEERING DRAWING STANDARDS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e I n i t i a l G r a p h ic s Style ............................................... 31 ........................ Exchange Specification Library Services Branch ....................... 58 I L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e I n d e x lis t Lines ................................................. 25 Index list ........................................... 68 Conventions ............................... 26, 27 Continuation sheet ........................... 75 Ink ................................................. 25 Entries ........................................ 74 Pencil ............................................. 27 F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Plotted ............................................ 25 Cover sheet ..................................... 69 Types ........................................ 26, 27 Entries ................................... 69, 70 Break ........................................... 28 F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 Center .......................................... 27 Definitions ..................................... 68 Cutting-plane ................................ 30 Re q u ir e me n ts Datum .......................................... 30 A d d i n g i t e ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 D i me n s i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 8 D e l e t i n g i t e ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 Extension ..................................... 30 L i s t f o r ma t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 Hidden ......................................... 30 List preparation ............................ 68 Leaders ........................................ 28 Revision identification .................. 69 Outlines ....................................... 30 I n d u s tr ia l s ta n d a r d s a n d s p e c if ic a tio n s . . 9 5 Phantom ....................................... 29 I n f o r ma t i o n M a n a g eme n t D i v i s i o n . . . . . . . . 5 8 Sectioning .................................... 29 I n f o r ma t i o n a l n o t e s . . . . . . . . . . . . . . . . . . s e e N o t e s Stitch ........................................... 30 I n i t i a l G r a p h ic s E x c h a n g e S p e c i f i c a t i o n 8 1 Viewing-plane ............................... 30 Ink lines ................................... see Lines Visible ......................................... 30 I n s e p a r a b l e a s s e mb l y d r a w i n g s . . . . . . . . . . . . . . . . List of Material ......................... 8, 10, 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s Entries ............................................ 78 Inseparable parts ....................... see Parts F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8 , 1 0 4 Inside rounding ...................................... R e q u i r e me n t s i n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 . . . . . . . . . . . . . . . . . . . s e e Me tr ic d ime n s io n in g — LM ........................... see List of Material ........................... Rounding—Precision Local character notes .................see Notes Inspection notes ....................... see Notes Lock washers .................................... 106 I n s t a l l a t i o n a s s e mb l y d r a w i n g s . . . . . . . . . . . . . . . . L o w - o u t g a s s i n g ma t e r i a l s . . . . . . . . . . . . . . . . . . . 1 0 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s I n t e r f a c e c o n t r o l d r a w i n g s . . . . s e e D r a w in g s M Interference range ............................. 105 International System of Units .................. M a t c h e d - s e t d r a w i n g s . . . . . . . . . . s e e D r a w in g s ..................................................... 83 M a t e r ia l . . . . . . . . . . . . . . . . . . . . . . s e e a l s o 'S I ' a n d 'Me t r i c ' Conventions ..................................... 35 Introduction ......................................... 1 Low-outgassing .............................. 105 ISO ................................................... 13 Outgassing....................................... 93 I t e m n u mb e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 Mechanical Engineering Branch ............ 58 A p p l i c a t i o n a n d l i mi t a t i o n . . . . . . . . . . . . . . . . 7 6 M e c h a n i c a l s c h e ma t i c d i a g r a m d r a w i n g s . . . Definition ....................................... 76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s D r a w i n g r e q u i r e me n t s . . . . . . . . . . . . . . . . . . . . . . 7 7 Metric .................................... see also SI System of identification ................... 76 Me tr ic d ime n s io n in g I t e m n u mb e r i n g . . . . . . . . . . . . . . . . . s e e N u mb e r in g Ro u n d in g B a s i c d i me n s i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7 General rules ................................ 86 J Precision ................................ 88, 89 J roll size ............................................ 3 T o l e r a n c e d d i me n s i o n s . . . . . . . . . . . . . . . . . . . 8 8 J o i n i n g me t h o d n o t e s . . . . . . . . . . . . . . . . s e e N o t e s Unit conversions .............................. 86 Metric system ..................................... 83 M i l i t a r y s t a n d a r d s an d s p e c i f i c a t i o n s . . . . . 9 6 L M o d i f i c a t i o n d r a w i n g s . . . . . . . . . s e e D r a w in g s Lay (of a surface) ............................... 90 M u l t i s h e e t d r a w i n g s . . . . . . . . . . . . s e e D r a w in g s L e t t e r i n g a n d N u me r a l s . . . . . . . . . . . . . . . . . . . . . . . 3 1 Heights........................................... 32 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 113 N N u mb e r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 9 Separable ........................................ 40 NAS .................................................. 13 Vendor ................................. 52, 53, 59 NASA standards and specifications ...... 98 Altered ................................... 39, 59 National Bureau of Standards index ...... 93 Selected ................................. 39, 59 NEMA ............................................... 13 W e l d me n t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 4 N o me n c l a t u r e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Parts list ...................................... 14, 68 Notes ................................................ 25 Continuation sheet ............................ 73 Coating .......................................... 18 Entries ......................................... 72 D i me n s i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 D i me n s i o n a l t o l e r a n c e . . . . . . . . . . . . . . . . . . . . . . 2 4 S u p p l e me n t a r y h e a d i n g l i s t . . . . . . . . . . . . . 7 3 E x a mp l e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 Co v e r s h e e t General .......................................... 15 Entries ................................... 69, 70 Heat treating ................................... 17 F o r ma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 I n f o r ma t i o n a l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 Definitions ...................................... 68 Inspection ....................................... 20 Engineering .......................... 59, 60, 80 J o i n i n g me t h o d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 8 Preferred ......................................... 14 Local character .......................... 15, 23 Re q u ir e me n ts Location ......................................... 15 A d d i n g i t e ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 Miscellaneous ................................. 21 D e l e t i n g i t e ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 N u mb e r i n g o f . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 L i s t f o r ma t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 9 Plating ........................................... 18 List preparation ............................. 68 Surface preparation.......................... 19 Revision identification ................... 69 Testing ........................................... 20 P e n c i l d r a w i n g s . . . . . . . . . . . . . . . . . . s e e D r a w in g s Threaded inserts Pencil lines .............................. see Lines Cleaning and installation ............... 21 Picturization ....................................... 33 Warning note .................................. 15 PL ...................................... see Parts list NSA .................................................. 13 Plating notes.............................see Notes NTIS ................................................. 93 Plotted lines ............................. see Lines N u mb e r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 Positioning ................................... 33, 35 Find ............................................... 60 Precision rounding ................................. Item ............................................... 60 . . . . . . s e e Me tr ic d ime n s io n in g — Ro u n d in g Parts .............................................. 59 Press fits .......................................... 105 N u mb e r i n g o f n o t e s . . . . . . . . . . . . . . . . . . s e e N o t e s Projected tolerance zone .................... 106 Projected views ........................ see Views O Order of precedence...... see Specifications R Orthographic projection ...................... 25 Radii ............................................... 105 Outgassing Regardless of Feature Size ................. 105 L o w - o u t g a s s i n g ma t e r i a l s . . . . . . . . . . . . . . . . 1 0 5 Revision block ............................ 4, 9, 65 O f s p a c e c r a f t ma t e r i a l s . . . . . . . . . . . . . . . . . . . . 9 3 APPROVAL ...................................... 9 O u t l i n e d r a w i n g s . . . . . . . . . . . . . . . . . s e e D r a w in g s DATE .............................................. 9 Outlines DESCRIPTION.................................. 9 Invisible ......................................... 34 S a mp l e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 , 6 6 Visible ........................................... 34 SYM ................................................ 9 ZONE .............................................. 9 P Revisions ........................................... 65 Identification ................................... 65 P a r t n u mb e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 , 5 9 Me t h o d s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 P a r t P o s i t i o n i n g . . . . . . . . . . . . . . . s e e P o s itio n in g Multisheet drawings ......................... 65 Parts Recording ........................................ 65 D i me n s i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 4 Redrawn or replaced drawings ........... 67 Identification of ............................. 105 Rotated views .......................... see Views Inseparable ..................................... 41 Rounding ........................................... 86 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 114 ENGINEERING DRAWING STANDARDS MANUAL R o u n d i n g : . . . . s e e a l s o Me tr ic d ime n s io n in g T T a b u l a t e d d r a w i n g s . . . . . . . . . . . . . s e e D r a w in g s S T e mp l a t e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 , 8 2 , 1 0 4 Testing notes ............................see Notes SAE .................................................. 13 Third-angle orthographic projection ...... 25 Scale ................................................. 32 Thread specifications ..................... 91, 92 Sections ............................................ 34 Threaded inserts—Cleaning and Identification .................................. 37 installation notes ....................see Notes Locating ......................................... 38 Title block ............................ 4, 9, 32, 33 Security classification ................... 10, 15 APPROVED ...................................... 7 S e l e c t e d p a r t s . . . . . . . . . . . . . . s e e P a r ts — V e n d o r CHECKED ........................................ 7 S e l e c t e d v e n d o r p ar t d r a w i n g s . . . . . . . . . . . . . . . . . CODE .............................................. 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s DATE .............................................. 7 Separable parts ......................... see Parts DESCRIPTION.................................. 9 S h e e t n u mb e r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 DESIGNER ....................................... 7 S I . . . s e e a ls o I n t e r n a t i o n a l S y s t e m o f U n i t s Drawing No. ..................................... 7 U n i t s a n d s y mb o l s . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 DRAWN ........................................... 7 Silver-plated hardware ....................... 106 EXAMINATION ................................ 8 Soldering...................................... 18, 89 FLIGHT HARDWARE ........................ 8 S o u r c e c o n t r o l d r a w i n g s . . . . . . . s e e D r a w in g s HARDNESS TESTING ....................... 8 Space Transportation System ............... 20 ITEM NO. ........................................ 8 Specification callouts ......................... 24 MATERIAL ...................................... 9 S p e c i f i c a t i o n c o n tr o l d r a w i n g s . . . . . . . . . . . . . . . . . MATERIAL SPEC. ............................ 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D r a w in g s METRIC ........................................... 8 Specifications .................................... 82 NEXT ASSY ..................................... 8 Order of precedence ......................... 60 PART NO. ........................................ 8 Subsequent changes ......................... 24 REQD .............................................. 8 Thread....................................... 91, 92 S a mp l e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Specifications index ............................... SCALE ............................................. 7 . . s e e S ta n d a r d s a n d s p e c if ic a tio n s in d e x S H ___O F ___ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 S t a n d a r d p a r t d r a w i n g . . . . . . . . . . s e e D r a w in g s Software used ................................... 8 Standards .......................................... 82 TITLE .............................................. 7 Order of precedence ......................... 60 USED ON ......................................... 7 S t a n d a r d s a n d s p e c i f ic a t i o n s i n d e x . . . . . . . 9 3 WT .................................................. 7 Federal ........................................... 93 T o le r a n c e Blo c k Industrial........................................ 95 Metric ............................................. 86 Military .......................................... 96 Tolerances .................. 24, 82, 84, 88, 104 NASA ............................................ 98 Loose ............................................ 105 National Bureau of Standards ............ 93 Metric ............................................. 86 S ta n d a r d s a n d s p e c if ic a tio n s n u me r ic a l T o le r a n c in g index .............................................. 98 True position ................................. 105 STS ....... see Space Transportation System T o o l i n g d r a w i n g s . . . . . . . . . . . . . . . . s e e D r a w in g s S u p p o r tin g d o c u me n ta tio n Tooling fixtures .................................. 55 N u mb e r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 Transported views .................... see Views Surface preparation notes .......... see Notes T r u e p o s i t i o n d i me n s i o n i n g . . . . . . . . . . . . . . . . . . . . . Surface roughness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s e e D ime n s io n in g Control of ....................................... 90 Surface texture ................................... 90 Standards........................................ 90 U S y mb o l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 0 U n i t n u mb e r p r i n c i p l e . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 S ymb o ls U n i t r o u n d i n g . . . . . . . . . . . . . . . . . . . . . s e e Ro u n d in g Cross-hatching ................................ 35 E l e c t r i c a l / E le c t r o n i c . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Welding.......................................... 92 W ir i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d ENGINEERING DRAWING STANDARDS MANUAL 115 V Vapor degreasing ............................... 20 Vendor part .............................. see Parts V e n d o r p a r t d r a w i n g s . . . . . . . . . . . s e e D r a w in g s Views .......................................... 25, 36 Identification .................................. 37 Locating ......................................... 38 Projected ........................................ 36 Rotated........................................... 36 Sectional ........................................ 34 Designation .................................. 35 Positioning .................................. 35 Transported .................................... 36 W Waviness (of a surface) ....................... 90 Welding ............................................ 18 General .......................................... 92 Notes ............................................. 18 Specification callouts....................... 92 S y mb o l s . . . . . . . . . . . . . . . . . . . . . s e e a l s o S ymb o ls Location significance .................... 92 W e l d me n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 , 1 0 4 W ir i n g s y mb o l s . . . . . . . . . . . . . . . . . . . . s e e S ymb o ls Z Zoning ........................................... 4, 10 X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d 116 ENGINEERING DRAWING STANDARDS MANUAL X-673-64-1F REV 001 DEC. ‘94 G O D D AR D S P AC E F L I G H T C E N T E R , G r e e n b e l t , M a r y l a n d