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 |
|---|---|
| 31435 | LUCAS AEROSPACE POWER EQUIPMENT CORP |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASL | HEAD DIAMETER | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.156 INCHES MINIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL OR ZINC OVERALL |
| AAWC | FIRST DIAMETER FROM HEAD | 0.097 INCHES MINIMUM AND 0.102 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.281 INCHES NOMINAL |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | ROUND |
| MATT | MATERIAL | STEEL COMP 1020 OVERALL OR STEEL COMP 1018 OVERALL OR STEEL COMP 1025 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AASB | FASTENER LENGTH | 0.438 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.091 INCHES MINIMUM AND 0.103 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| AHYM | NOMINAL THREAD DIAMETER | 0.138 INCHES |