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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
96906 MILITARY STANDARDS PROMULGATED BY MI

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CYAU SCREW MATERIAL STEEL COMP 304 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 305 OR STEEL COMP 316
CYAW SCREW MATERIAL DOCUMENT AND CLASSIFICATION 66 FED STD ALL MATERIAL RESPONSES
ABQZ INTERNAL DRIVE STYLE SLOT
AASK HEAD STYLE FILLISTER
CQBC MINIMUM TENSILE STRENGTH 80000 POUNDS PER SQUARE INCH
CYBG HEAD HOLE CONFIGURATION STYLE ROUND
CYBA SCREW SURFACE TREATMENT PASSIVATE
AAJF THREAD DIRECTION RIGHT-HAND
AHYM NOMINAL THREAD DIAMETER 0.164 INCHES
ASXK HOLE QUANTITY 1
AASB FASTENER LENGTH 0.500 INCHES NOMINAL
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASA THREAD LENGTH 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
AAUB HOLE DIAMETER 0.046 INCHES NOMINAL
CYBE SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
CMLP THREAD QUANTITY PER INCH 32
AASL HEAD DIAMETER 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
AASU HEAD HEIGHT 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM

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