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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
99251 CARLETON LIFE SUPPORT SYSTEMS INC. D

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CYAU SCREW MATERIAL STEEL COMP 303
CYAU SCREW MATERIAL STEEL COMP 303
AASB FASTENER LENGTH 0.160 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
AASL HEAD DIAMETER 0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM
AASK HEAD STYLE ROUND
AASA THREAD LENGTH 0.135 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.112 INCHES
CYAW SCREW MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-764 COND A FED SPEC SINGLE MATERIAL RESPONSE
AASU HEAD HEIGHT 0.075 INCHES MINIMUM AND 0.086 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
CMLP THREAD QUANTITY PER INCH 40

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