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 |
|---|---|
| 77445 | UNITED TECHNOLOGIES CORPORATION DBA |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AATD | EXTENDED WASHER THICKNESS | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.215 INCHES MINIMUM AND 0.221 INCHES MAXIMUM |
| ASXK | HOLE QUANTITY | 2 |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| CYBG | HEAD HOLE CONFIGURATION STYLE | ROUND |
| AASU | HEAD HEIGHT | 0.271 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.0525 INCHES MINIMUM AND 0.0645 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AHYM | NOMINAL THREAD DIAMETER | 0.164 INCHES |
| CYBE | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AATC | EXTENDED WASHER DIAMETER | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.432 INCHES MINIMUM AND 0.442 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | TWO DRILLED HOLES IN HEAD 90.0 DEGREES APART,FROM BEARING SURFACE OF HEAD,ONE HOLE IS LOCATED 0.125 IN. TO 0.145 IN. THE OTHER 0.060 IN. TO 0.070 IN. |
| AASK | HEAD STYLE | FLAT EXTENDED WASHER |
| AASA | THREAD LENGTH | 0.375 INCHES MINIMUM |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CYAU | SCREW MATERIAL | STEEL COMP 1215 |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE |