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 |
|---|---|
| 81996 | U S ARMY AVIATION AND MISSILE COMMAN |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| MATT | MATERIAL | STEEL COMP 8740 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 4037 OVERALL |
| AASK | HEAD STYLE | FILLISTER |
| AAJD | THREAD CLASS | 3A |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.200 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL AND CHROMIUM OVERALL |
| AASL | HEAD DIAMETER | 0.208 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| AAWC | FIRST DIAMETER FROM HEAD | 0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AASA | THREAD LENGTH | 1.000 INCHES MINIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL AND MIL-P-6871 TYPE 2,CLASS A MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| CQFM | HARDNESS RATING | 20.0 ROCKWELL C MINIMUM OVERALL AND 24.0 ROCKWELL C MAXIMUM OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| AASB | FASTENER LENGTH | 2.200 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.085 INCHES MINIMUM AND 0.093 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.138 INCHES |