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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
96169 ELECTRIC BOAT CORPORATION

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AASA THREAD LENGTH 0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE SLOT
CQBC MINIMUM TENSILE STRENGTH 80000 POUNDS PER SQUARE INCH
CMLP THREAD QUANTITY PER INCH 18
AASL HEAD DIAMETER 0.540 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE ROUND
CYAU SCREW MATERIAL NICKEL ALLOY 400
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASB FASTENER LENGTH 2.000 INCHES NOMINAL
CYAW SCREW MATERIAL DOCUMENT AND CLASSIFICATION QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE
AHYM NOMINAL THREAD DIAMETER 0.312 INCHES
AASU HEAD HEIGHT 0.226 INCHES MINIMUM AND 0.245 INCHES MAXIMUM

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