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 |
|---|---|
| 89944 | KOLLSMAN INC. |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASA | THREAD LENGTH | 0.187 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.187 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.187 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| CMLP | THREAD QUANTITY PER INCH | 72 |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASU | HEAD HEIGHT | 0.047 INCHES MINIMUM AND 0.051 INCHES MAXIMUM |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC ALL MATERIAL RESPONSES OR QQ-B-626 FED SPEC ALL MATERIAL RESPONSES |
| CYAU | SCREW MATERIAL | COPPER ALLOY 260 OR COPPER ALLOY 342 OR COPPER ALLOY 240 OR COPPER ALLOY 230 OR COPPER ALLOY 360 OR COPPER ALLOY 353 OR COPPER ALLOY 268 OR COPPER ALLOY 377 |
| AASL | HEAD DIAMETER | 0.116 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.073 INCHES |