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 |
|---|---|
| 18876 | U S ARMY AVIATION AND MISSILE COMMAN |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 0.086 INCHES |
| AASK | HEAD STYLE | PAN NO. 2 |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AASL | HEAD DIAMETER | 0.155 INCHES MINIMUM AND 0.167 INCHES MAXIMUM |
| CYAU | SCREW MATERIAL | STEEL COMP 1023 OR STEEL COMP 1022 OR STEEL COMP 1019 OR STEEL COMP 1017 OR STEEL COMP 1015 OR STEEL COMP 1008 OR STEEL COMP 1018 OR STEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1025 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CYBA | SCREW SURFACE TREATMENT | NICKEL AND ZINC OR CHROMATE |
| AASU | HEAD HEIGHT | 0.045 INCHES MINIMUM AND 0.053 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 1.250 INCHES MINIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-631 FED SPEC ALL MATERIAL RESPONSES |
| AAJD | THREAD CLASS | 2A |
| CMLP | THREAD QUANTITY PER INCH | 56 |
| CQBC | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| AASB | FASTENER LENGTH | 1.250 INCHES NOMINAL |