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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
21450 ARMY WEAPONS COMMAND ATTN AMSWE-REE-

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CQFM HARDNESS RATING 100.0 ROCKWELL B MAXIMUM OVERALL
CQFM HARDNESS RATING 100.0 ROCKWELL B MAXIMUM OVERALL
AASU HEAD HEIGHT 0.562 INCHES NOMINAL
AASA THREAD LENGTH 1.750 INCHES MINIMUM AND 1.938 INCHES MAXIMUM
AASB FASTENER LENGTH 2.500 INCHES NOMINAL
AATB WIDTH BETWEEN FLATS 1.000 INCHES NOMINAL
AAJF THREAD DIRECTION RIGHT-HAND
MDCL MATERIAL DOCUMENT AND CLASSIFICATION SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
ZZZX DEPARTURE FROM CITED DESIGNATOR AS MODIFIED BY HEAD HEIGHT AND WIDTH BETWEEN FLATS
MATT MATERIAL STEEL OVERALL
CQHQ MINIMUM YIELD STRENGTH 52000 POUNDS PER SQUARE INCH
THSD THREAD SERIES DESIGNATOR UNF
CMLP THREAD QUANTITY PER INCH 16
AAJD THREAD CLASS 2A
AASK HEAD STYLE HEXAGON
AHYM NOMINAL THREAD DIAMETER 0.750 INCHES
CQBC MINIMUM TENSILE STRENGTH 64000 POUNDS PER SQUARE INCH
ZZZT NONDEFINITIVE SPEC/STD DATA 2 TYPE AND 10 STYLE

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