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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , HEXAGON HEAD

Definition:

AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION INTO HOLES IN ASSEMBLED PARTS, FOR MATING WITH A PREFORMED INTERNAL THREAD AND FOR TIGHTENING OR RELEASING BY TORQUING THE HEAD. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF THE SAME NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. THE THREAD LENGTH BEING THE CONTROLLED DIMENSION, THE GRIP LENGTH IS NOT SPECIFIED. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; AND SCREW, CAP, SOCKET HEAD.

CAGE Information

Code Company
84272 B & G MANUFACTURING CO. INC.

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AASA THREAD LENGTH 1.318 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.625 INCHES
AASU HEAD HEIGHT 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 80000 POUNDS PER SQUARE INCH
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
AATB WIDTH BETWEEN FLATS 0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
CQHQ MINIMUM YIELD STRENGTH 40000 POUNDS PER SQUARE INCH
CQFM HARDNESS RATING 80.0 ROCKWELL C MINIMUM OVERALL
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASK HEAD STYLE HEXAGON
CMLP THREAD QUANTITY PER INCH 11
MATT MATERIAL NICKEL ALLOY 400 OVERALL
AASB FASTENER LENGTH 1.500 INCHES NOMINAL

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