NIIN Output Data
NIIN:
NSN:
Item Name:
SCREW , EXTERNALLY RELIEVED BODY
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.
Reference/Part Number
CAGE Information
| Code |
Company |
| 94259 |
WESTINGHOUSE ELECTRIC CORP BETTIS AT |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASL |
HEAD DIAMETER |
0.940 INCHES NOMINAL |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.630 INCHES NOMINAL |
| CRTL |
CRITICALITY CODE JUSTIFICATION |
ZZZY |
| AHYM |
NOMINAL THREAD DIAMETER |
0.625 INCHES |
| MATT |
MATERIAL |
STEEL CORROSION RESISTING OVERALL |
| ASDB |
WIDTH ACROSS FLATS |
0.500 INCHES NOMINAL |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| AASB |
FASTENER LENGTH |
1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| ZZZY |
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS |
MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUAILTY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| CMLP |
THREAD QUANTITY PER INCH |
11 |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| AASA |
THREAD LENGTH |
0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
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