Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL 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. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.
CAGE Information
| Code | Company |
|---|---|
| 98897 | LOCKHEED MARTIN CORPORATION DBA LOCK |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| FEAT | SPECIAL FEATURES | NO.4-40 UNC 2B DRILLED AND TAPPED HOLE 0.375 IN. DEEP FROM DRIVE END |
| FEAT | SPECIAL FEATURES | NO.4-40 UNC 2B DRILLED AND TAPPED HOLE 0.375 IN. DEEP FROM DRIVE END |
| AASA | THREAD LENGTH | 0.406 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.662 INCHES MINIMUM AND 0.682 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AAJD | THREAD CLASS | 2A |
| AASU | HEAD HEIGHT | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM |