Part Number
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.
CAGE Information
| Code | Company |
|---|---|
| 53711 | NAVAL SEA SYSTEMS COMMAND |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 3.515 INCHES NOMINAL |
| AAWE | THIRD DIAMETER FROM HEAD | 0.320 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| MATT | MATERIAL | STEEL COMP 304 OVERALL |
| AASL | HEAD DIAMETER | 1.000 INCHES NOMINAL |
| AASA | THREAD LENGTH | 0.550 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.485 INCHES NOMINAL |
| AAJD | THREAD CLASS | 3A |
| AAWJ | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 3.765 INCHES NOMINAL |
| AAWD | SECOND DIAMETER FROM HEAD | 0.635 INCHES MINIMUM AND 0.637 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AAWK | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 3.965 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 14 |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| AAWC | FIRST DIAMETER FROM HEAD | 0.622 INCHES MINIMUM AND 0.624 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AHYM | NOMINAL THREAD DIAMETER | 0.438 INCHES |
| AASB | FASTENER LENGTH | 4.515 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |