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 |
|---|---|
| 98230 | NATIONAL SECURITY AGENCY |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASL | HEAD DIAMETER | 0.270 INCHES MINIMUM AND 0.332 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AASA | THREAD LENGTH | 0.218 INCHES MINIMUM |
| 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 | 0.376 INCHES MINIMUM AND 0.407 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 0.164 INCHES |
| AAWC | FIRST DIAMETER FROM HEAD | 0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | NYLON PELLET IN THD |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| MATT | MATERIAL | IRON ALLOY 660 OVERALL |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AASB | FASTENER LENGTH | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |