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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , MACHINE

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL 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. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.

CAGE Information

Code Company
11530 LOCKHEED MARTIN CORPORATION DIV LOCK

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AASU HEAD HEIGHT 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE SLOT
CYAU SCREW MATERIAL STEEL
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE ROUND
AASA THREAD LENGTH 0.900 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASL HEAD DIAMETER 0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 20
CYBA SCREW SURFACE TREATMENT CADMIUM
AASB FASTENER LENGTH 1.000 INCHES NOMINAL

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