ENGINEERING DRAWING STANDARDS MANUAL

The GSFC Engineering Drawing Standards Manual is the official source for the requirements and interpretations to be used in the development and presentation of engineering drawings and related documentation for the GSFC. The Mechanical Engineering Branch, Mechanical Systems Division, has been delegated the responsibility for interpretation, periodic updates, and distribution of the GSFC Engineering Drawing Standards Manual. All Engineering Directorate design organizations and their contractors shall adhere to the requirements of this manual when preparing GSFC engineering documentation for flight hardware and ground support systems. Comments or inquiries concerning this manual should be directed to the Mechanical Engineering Branch, Code 722.

ENGINEERING DRAWING STANDARDS MANUAL

R

A TIO

N

U S A.

ENGINEERING DRAWING

S T A N D A R D S M A N U A L

Mechanical Engineering Branch

Goddard Space Flight Center

T R A TIO N

TABLE OF CONTENTS

I N T R O D U C T I O N 1

1 D R A W I N G E L E M E N T S 3

1 1 D r a w i n g S i z e s 3

1 2 M u l t i s h e e t D r a w i n g s 3

1 3 Z o n i n g 4

1 4 T i t l e B l o c k a n 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 m a t 1 0

2 N O M E N C L A T U R E 1 1

2 1 D r a w i n g T i t l e 1 1

2 2 A b b r e v i a t i o n s 1 2

2 3 L i s t o f M a t e r i a l 1 4

2 3 1 R e q u i r e m e 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 m e 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 N o t e s o n D r a w i n g s 1 5

2 4 1 S e c u r i t y C l a s s i f i c a t i o n 1 5

2 4 2 N o t e L o c a t i o n 1 5

2 4 3 N u m b e r i n g o f N o t e s 1 6

2 4 4 N o t e E x a m p l e s 1 6

2 4 4 1 D i m e n s i o n N o t e s 1 6

2 4 4 2 H e a t T r e a t i n g N o t e s 1 7

2 4 4 3 J o i n i n g M e 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 P l a t i n g a n d C o a t i n g N o t e s 1 8

2 4 4 5 S u r f a c e P r e p a r a t i o n N o t e s 1 9

2 4 4 6 T e s t i n g a n d I n s p e c t i o n N o t e s 2 0

2 4 4 7 T h r e a d e d I n s e r t s — C l e a n i n g a n d I n s t a l l a t i o n N o t e s 2 0

2 4 4 8 M i s c e l l a n e o u s N o t e s 2 1

2 4 4 9 I n f o r m a t i o n a l N o t e s 2 3

2 4 5 L o c a l C h a r a c t e r N o t e s 2 3

2 4 6 G e n e r a l D i m e 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 i o n C a l l o u t s 2 3

3 D R A F T I N G P R A C T I C E S 2 5

3 1 G e n e r a l 2 5

3 2 L i n e s 2 5

3 2 1 I n k L i n e s a n d P l o t t e d L i n e s 2 5

3 2 2 P e n c i l L i n e s 2 7

3 2 3 T y p e s o f L i n e s 2 7

3 2 3 1 C e n t e r L i n e s 2 7

3 2 3 2 D i m e n s i o n L i n e s 2 8

3 2 3 3 L e a d e r s 2 8

3 2 3 4 B r e a k L i n e s 2 8

3 2 3 5 P h a n t o m L i n e s 2 9

3 2 3 6 S e c t i o n i n g L i n e s 2 9

3 2 3 7 E x t e n s i o n L i n e s 3 0

3 2 3 8 H i d d e n L i n e s 3 0

3 2 3 9 S t i t c h L i n e s 3 0

3 2 3 1 0 O u t l i n e s o r V i s i b l e L i n e s 3 0

3 2 3 1 1 D a t u m L i n e s 3 0

3 2 3 1 2 C u t t i n g - P l a n e / V i e 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 m e r a l s 3 1

3 3 1 S t y l e 3 1

3 3 2 H e i g h t s 3 2

3 4 S c a l e 3 2

3 5 P o s i t i o n i n g t h e P a r t o n t h e D r a w i n g 3 3

S h e e t L e n g t h ( i n c h e s )

M a r g i n ( i n c h e s )

SECURITY NOTATION (IF REQUIRED)

SECURITY CLASSIFICATION

TITLE BLOCK

VERTICAL ZONE IDENTIFICATION ALPHABETICALLY LETTERED FROM BOTTOM EDGE

ALTERNATE LOCATION OF GENERAL NOTES

REVISION NOTES

PREFERRED LOCATION OF GENERAL NOTES

HORIZONTAL ZONE IDENTIFICATION NUMBERED FROM RIGHT-HAND EDGE SECURITY CLASSIFICATION

4 5

4 5

A B C D 1

23 2 24

7 12

DRAWING INTERPRETED PER GSFC-X673-64-1

REMOVE ALL BURRS AND SHARP EDGES R 010 OR CHAMFER MAX.

LIST OF MATERIAL ITEM

FLIGHT HARDWARE/POST FAB HARDNESS TEST REQ'D HARDNESS TEST NOT REQUIRED

TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL TEST HARDNESS PER ASTM E-18 WHERE INDICATED

ON FIELD OF DRAWING THUS

NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D NDE REQUIRED PER S-313-009 CODE THIS DRAWING WAS PRODUCED USING

REVISION

APPROVAL DATE DESCRIPTION

ZONE

WT

DRAWING INTERPRETED PER GSFC-X673-64-1

DESIGNER DRAWN CHECKED MECHANICAL ENGINEER SYSTEMS ENGINEER ELECTRICAL ENGINEER

LIST OF MATERIAL

ITEM NO

NATIONAL AERONAUTICS AND

GREENBELT, MARYLAND

Goddard Space Flight Center

NON-DESTRUCTIVE EXAMINATION (NDE) NOT REQD NDE REQUIRED PER S-313-009 CODE

THIS DRAWING WAS PRODUCED USING SOFTWARE:

17

15 14

28 27 26

25 24

24

2

23 3 1

4 5

22

6 8

21

9 10 11

EDGES R 0.25 OR CHAMFER MAX

REMOVE ALL BURRS AND SHARP

THIRD ANGLE PROJECTION

UNLESS OTHERWISE SPECIFIED

IN

HYBRID METRIC

DETAIL DRAWING

INSEPARABLE ASSEMBLY DRAWING

ASSEMBLY DRAWING

INSEPARABLE ASSEMBLY DRAWING

DETAIL SHOWN & OPPOSITE DRAWING

AL ALY

SEE NOTE 1 QQ-A-250/11 6061-T6 1

AL ALY

AL ALY BAR OPPOSITE

BAR SHOWN -1

AL ALY

SEE NOTE 1 QQ-A-250/11 6061-T6 MS21209C0415

GD1000001 PLATE ASSY A/R

BLOCK PLATE

PADDLE ASSEMBLY OPPOSITE PADDLE ASSEMBLY SHOWN PLATE

CRES

N o t e s :

( a ) P a i n t , a d h e s i v e s , a n d p r o t e c t i v e c o a t i n g s s h a l l a p p e a r i n n o t e f o r m ( b ) H a r d w a r e s h a l l a p p e a r i n L i s t o f M a t e r i a l w i t h r e q u i r e d q u a n t i t y

( c ) “ A / R ” s h a l l b e u s e d i n R E Q D c o l u m n w h e n s a m e m a t e r i a l ( s a m e m a t e r i a l

s p e c i f i c a t i o n a n d c o n d i t i o n ) a p p e a r s m o r e t h a n o n c e i n d i f f e r e n t s i z e s i n

t h e f i e l d o f t h e d r a w i n g ( d ) “ A / R ” m a y b e u s e d t o i n d i c a t e l a r g e q u a n t i t i e s o f r i v e t s

GSFC X-673-64-1F.)

G E A R T O L E R A N C E S T O B E I N A C C O R D A N C E W I T H

A G M A S T A N D A R D Q U A L I T Y (insert number)

D I M E N S I O N S A R E I N M I L L I M E T E R S

T O O L I N G - C O N T R O L L E D D I M E N S I O N P E R

T E M P L A T E ( o r “ T O O L ” ) N U M B E R G X X X X X X X X T H E

A C T U A L T O L E R A N C E S O N T H E F E A T U R E ' S

L O C A T I O N S A R E C O N T R O L L E D B Y T H E T E M P L A T E (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.)

N o t e f o r s t e e l :

H E A T T R E A T I N A C C O R D A N C E W I T H M I L - H - 6 8 7 5 T O

X X X ( X X X = “ R o c k w e l l , ” “ B r i n e l l , ” o r

V i c k e r s ” )

N o t e s f o r a l u m i n u m :

H E A T T R E A T I N A C C O R D A N C E W I T H M I L - H - 6 0 8 8 T O ( B r i n e l l )

H E A T T R E A T T O C O N D I T I O N A F T E R (insert “BRAZING” or “WELDING”) IN

A C C O R D A N C E W I T H M I L - H - 6 0 8 8

A F T E R W E L D I N G , S O L U T I O N H E A T T R E A T A N D

A R T I F I C I A L L Y A G E T O T - 6 C O N D I T I O N P E R

M I L - H - 6 0 8 8

2.4.4.3 Joining Method Notes (w elding, brazing, etc.)

S I L V E R P L A T E I N A C C O R D A N C E W I T H Q Q - S - 3 6 5 ,

T Y P E , G R A D E

P A I N T I N A C C O R D A N C E W I T H M I L - S T D - 1 7 1 , T A B L E ; F I N I S H N O C O L O R I N

N o t e f o r i r o n a n d s t e e l :

A P P L Y P R O T E C T I V E P H O S P H A T E C O A T I N G I N

A C C O R D A N C E W I T H M I L - C - 1 2 9 6 8 , T Y P E ( A d d “ C L A S S ” i f a p p l i c a b l e )

F R A C T U R E C R I T I C A L P A R T - D O N O T E T C H P A R T

P E N E T R A N T I N S P E C T P E R G S F C S - 3 1 3 - 0 0 9 ,

C O D E X X X X X (Usually used for rolled parts.)

I N S T A L L T H R E A D E D I N S E R T S P E R X X X ( X X X = “ M S 3 3 5 3 7 ” f o r c o i l t y p e ,

B A G P A R T P E R M I L - P - 1 1 6 , M E T H O D , A N D

T A G W I T H P A R T N U M B E R ”

A L T E R E D S U R F A C E S T O H A V E (Refer to paragraph 10.4.1, page 93, for symbol notation.)

F I N I S H A L L O V E R (Refer to paragraph 10.4.1, page 93, for symbol notation.)

S U R F A C E R O U G H N E S S A S X X X :

M A C H I N E D S U R F A C E S ( w h e r e X X X i s “ R O L L E D , ” “ E X T R U D E D , ” o r

“ D R A W N ” ) ( R e f e r t o p a r a g r a p h 1 0 4 1 , p a g e 9 3 , f o r

A R E H A Z A R D O U S A N D M U S T B E H A N D L E D I N

A C C O R D A N C E W I T H A P P L I C A B L E S A F E T Y

R E G U L A T I O N 4 9 - C F R 7 1 - 7 8

F i g u r e 4 : L i n e T y p e s a n d C o n v e n t i o n s

F i g u r e 9 : F u l l S e c t i o n a l V i e w

O n c o m p l e x v i e w s , o r w h e n t h e c u t t i n g p l a n e s a r e b e n t o r o f f s e t ,

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 i n F i g u r e 1 0

F i g u r e 1 0 : O f f s e t S e c t i o n s

3.3 Lettering and Numerals

CORRECT BUT NOT IN LINE OF PROJECTION

NOT RECOMMENDED SECTION ROTATED XX° CW

1D SH1

5 A

D

1

SH3 5A

(TITLE BLOCK NOT SHOWN)

3.5.6 Locating Sections, View s, and Details

N o t e : Z o n e b l o c k s i z e i s 1 / 2 - i n c h s q u a r e

NOTES: UNLESS OTHERWISE SPECIFIED

1 ALTERED PART SOURCE INFORMATION;

PART NO: 118-R-0715 RELAY

VENDOR; LEACH CORP.

ADDRESS; LOS ANGELES, CALIF.

ALTERED VENDOR PART DRAWING

SEE NOTE 2 (REIDENTIFY THE PART TO GSFC PART

ø 218 +- 006 -1 HOLEENLARGE EXISTING

AT THIS LOCATION ONLY

MATERIAL

Goddard Space Flight Center

WT SCALE

DRAWING INTERPRETED PER GSFC-X673-64-1

MATERIAL SPEC & NO.

PART NO.

HARDNESS TEST NOT REQUIRED

REMOVE ALL BURRS AND SHARP EDGES R 010 OR CHAMFER MAX.

UNLESS OTHERWISE SPECIFIED-DIMENSIONS ARE IN INCHES

TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL TEST HARDNESS PER ASTM E-18 WHERE INDICATED

ON FIELD OF DRAWING THUS

NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D NDE REQUIRED PER S-313-009 CODE

THIS DRAWING WAS PRODUCED USING SOFTWARE:

NEXT ASSY

.XXX

REQ'D REQ'D

NAME

LIST OF MATERIAL

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION DESCRIPTION

APPROVED-STRESS APPROVED-ENGINEER

125 INIT DATE

CODE TITLE SYM

GC

F i g u r e 1 6 : S a m p l e A l t e r e d o r S e l e c t e d V e n d o r P a r t D r a w i n g

9 MS35234-17

11 MS35649-44

MS35649-63 8

GXXXXXX1 1

7 MS15795-305

2 GXXXXXX5

GXXXXXX6 3

GXXXXXX3 4

GXXXXXX4 5

GXXXXXX2 6

MATERIAL

Goddard Space Flight Center

WT SCALE

DRAWING INTERPRETED PER GSFC-X673-64-1

MATERIAL SPEC & NO.

PART NO.

HARDNESS TEST NOT REQUIRED

REMOVE ALL BURRS AND SHARP EDGES R 010 OR CHAMFER MAX.

UNLESS OTHERWISE SPECIFIED-DIMENSIONS ARE IN INCHES

TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL TEST HARDNESS PER ASTM E-18 WHERE INDICATED

ON FIELD OF DRAWING THUS

NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D NDE REQUIRED PER S-313-009 CODE

THIS DRAWING WAS PRODUCED USING SOFTWARE:

NEXT ASSY

.XXX

REQ'D REQ'D

NAME

LIST OF MATERIAL

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION DESCRIPTION

APPROVED-STRESS APPROVED-ENGINEER

125 INIT DATE

CODE TITLE SYM

GC

F i g u r e 1 7 : S a m p l e A s s e m b l y D r a w i n g

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 m a 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 ,

i n c l u d i n g t h e m a t e r i a l f r o m w h i c h i t i s m a d e a n d t h o s e f i n i s h e s , p r o t e c t i v e

c o a t i n g s , a n d p r o c e s s e s r e q u i r e d t o f a b r i c a t e t h e e n d p r o d u c t O n l y o n e i t e m ( d e t a i l p a r t ) s h a l l b e p r e s e n t e d p e r d r a w i n g S e e F i g u r e 1 8

1.120 750

1.000

NOTES: UNLESS OTHERWISE SPECIFIED

.500 O

2.250 1.500

1 IRIDITE IN ACCORDANCE WITH

MATERIAL

Goddard Space Flight Center

WT SCALE

DRAWING INTERPRETED PER GSFC-X673-64-1

MATERIAL SPEC & NO.

PART NO.

HARDNESS TEST NOT REQUIRED

REMOVE ALL BURRS AND SHARP EDGES R 010 OR CHAMFER MAX.

UNLESS OTHERWISE SPECIFIED-DIMENSIONS ARE IN INCHES

TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL TEST HARDNESS PER ASTM E-18 WHERE INDICATED

ON FIELD OF DRAWING THUS

NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D NDE REQUIRED PER S-313-009 CODE

THIS DRAWING WAS PRODUCED USING SOFTWARE:

NEXT ASSY

.XXX

REQ'D REQ'D

NAME

LIST OF MATERIAL

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION DESCRIPTION

APPROVED-STRESS APPROVED-ENGINEER

125 INIT DATE

CODE TITLE SYM

GE XXXXXXX

-2456000

4, 5 C

DUAL BRACKET ASSY

GE 2450300

-B

GC 2450424 WASHER

AUTOCAD DRAWING DRAWING SIZE DRAWING NUMBER PRE-ASSIGNED DRAWING NUMBER

MULTI-USE DRAWING DRAWING REVISION LETTER

TO BE DETERMINED LIST OUTSTANDING EO NOS.

4.6 Inseparable Assembly Drawing

1.000

GXXXXXX2 1

.875 1.250

MS20426-X 3

MS33588-X 2

4.000

.063

ø 125+-.0062X

MATERIAL

Goddard Space Flight Center

WT SCALE

DRAWING INTERPRETED PER GSFC-X673-64-1

MATERIAL SPEC & NO.

PART NO.

HARDNESS TEST NOT REQUIRED

REMOVE ALL BURRS AND SHARP EDGES R 010 OR CHAMFER MAX.

UNLESS OTHERWISE SPECIFIED-DIMENSIONS ARE IN INCHES

TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL TEST HARDNESS PER ASTM E-18 WHERE INDICATED

ON FIELD OF DRAWING THUS

NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D NDE REQUIRED PER S-313-009 CODE

THIS DRAWING WAS PRODUCED USING SOFTWARE:

NEXT ASSY

.XXX

REQ'D REQ'D

NAME

LIST OF MATERIAL

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION DESCRIPTION

APPROVED-STRESS APPROVED-ENGINEER

125 INIT DATE

CODE TITLE SYM

4.7 Installation Assembly Drawing

MATERIAL

Goddard Space Flight Center

WT SCALE

DRAWING INTERPRETED PER GSFC-X673-64-1

MATERIAL SPEC & NO.

PART NO.

HARDNESS TEST NOT REQUIRED

REMOVE ALL BURRS AND SHARP EDGES R 010 OR CHAMFER MAX.

UNLESS OTHERWISE SPECIFIED-DIMENSIONS ARE IN INCHES

TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL TEST HARDNESS PER ASTM E-18 WHERE INDICATED

ON FIELD OF DRAWING THUS

NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D NDE REQUIRED PER S-313-009 CODE

THIS DRAWING WAS PRODUCED USING SOFTWARE:

NEXT ASSY

.XXX

REQ'D REQ'D

NAME

LIST OF MATERIAL

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION DESCRIPTION

APPROVED-STRESS APPROVED-ENGINEER

125 INIT DATE

CODE TITLE SYM

GC

.000 -

GXXXXXX1 1

GXXXXXX8

2

GXXXXXX4 6

(GXXXXXX9)

ø 500

2 X

GXXXXXX5 7

GXXXXXX6 8

GXXXXX11 11

4.8 Interface Control Drawing

9.000 12.000

24.000

+Y

+Z

12 x ø.281± .004ø.007

23°-30' +Y

PLATFORM #5 REF VIEW LOOKING OUTBOARD

INTERFACE CONTROL DRAWING

NOTES: UNLESS OTHERWISE SPECIFIED

2 THIS DRAWING IS NOT TO

BE USED FOR FABRICATION

OR INSPECTION.

1

-B-

MATERIAL

Goddard Space Flight Center

WT SCALE

DRAWING INTERPRETED PER GSFC-X673-64-1

MATERIAL SPEC & NO.

PART NO.

HARDNESS TEST NOT REQUIRED

REMOVE ALL BURRS AND SHARP EDGES R 010 OR CHAMFER MAX.

UNLESS OTHERWISE SPECIFIED-DIMENSIONS ARE IN INCHES

TEST HARDNESS PER ASTM E-18, LOCATION OPTIONAL TEST HARDNESS PER ASTM E-18 WHERE INDICATED

ON FIELD OF DRAWING THUS

NO NON-DESTRUCTIVE EXAMINATION (NDE) REQ'D NDE REQUIRED PER S-313-009 CODE

THIS DRAWING WAS PRODUCED USING SOFTWARE:

NEXT ASSY

.XXX

REQ'D REQ'D

NAME

LIST OF MATERIAL

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION DESCRIPTION

APPROVED-STRESS APPROVED-ENGINEER

125

DATE INIT

CODE TITLE SYM

GC

BOSS, CT 06132

F i g u r e 2 2 a : S a m p l e I n t e r f a c e C o n t r o l D r a w i n g