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 |
---|---|
09205 | LOCKHEED MARTIN CORP ELECTRONICS AND |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.570 INCHES NOMINAL |
AAWC | FIRST DIAMETER FROM HEAD | 0.136 INCHES NOMINAL |
MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
AASK | HEAD STYLE | FILLISTER |
AAJD | THREAD CLASS | 3A |
AASA | THREAD LENGTH | 0.310 INCHES NOMINAL |
CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
AASB | FASTENER LENGTH | 0.880 INCHES NOMINAL |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AASL | HEAD DIAMETER | 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
THSD | THREAD SERIES DESIGNATOR | UNF |
ASDB | WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
AASU | HEAD HEIGHT | 0.385 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
CMLP | THREAD QUANTITY PER INCH | 32 |
SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |