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 |
---|---|
28100 | ALLISON MFG CO DIV OF BEATRICE FOODS |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
ABQZ | INTERNAL DRIVE STYLE | SLOT |
MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
AASK | HEAD STYLE | FILLISTER |
CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
AASU | HEAD HEIGHT | 0.086 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AHYM | NOMINAL THREAD DIAMETER | 0.164 INCHES |
AASL | HEAD DIAMETER | 0.208 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.335 INCHES MINIMUM AND 0.355 INCHES MAXIMUM |
THSD | THREAD SERIES DESIGNATOR | UNC |
AAJD | THREAD CLASS | 2A |
AASB | FASTENER LENGTH | 0.534 INCHES NOMINAL |
AASA | THREAD LENGTH | 0.188 INCHES MINIMUM |
AAWC | FIRST DIAMETER FROM HEAD | 0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
CMLP | THREAD QUANTITY PER INCH | 32 |
SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |