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Part Number

Part Number:
NSN:
NIIN:
Item Name:
BOLT , MACHINE

Definition:

AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION THROUGH HOLES IN ASSEMBLED PARTS AND NORMALLY INTENDED TO BE TIGHTENED OR RELEASED BY TORQUING A NUT. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF ONE NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. FOR ITEMS HAVING A GRIP LENGTH PORTION MACHINED TO A TOLERANCE OF 0.0015 INCH (0.038 MM) OR LESS, BOLT, SHEAR. SEE ALSO SCREW, CAP, HEXAGON HEAD AND SCREW, MACHINE.

CAGE Information

Code Company
56442 DIAMOND REO TRUCK CO

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CMLP THREAD QUANTITY PER INCH 24
CMLP THREAD QUANTITY PER INCH 24
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTM A304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATT MATERIAL STEEL COMP 4140 OVERALL
AASB FASTENER LENGTH 0.844 INCHES NOMINAL
CBBL FEATURES PROVIDED FINISHED HEAD
ANEE GRIP LENGTH 0.125 INCHES NOMINAL
CQBC MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
CQFM HARDNESS RATING 321.0 BRINELL STANDARD MINIMUM OVERALL AND 370.0 BRINELL STANDARD MAXIMUM OVERALL
AATB WIDTH BETWEEN FLATS 0.500 INCHES NOMINAL
AAJF THREAD DIRECTION RIGHT-HAND
AASA THREAD LENGTH 0.719 INCHES MINIMUM
THSD THREAD SERIES DESIGNATOR UNF
AASU HEAD HEIGHT 0.234 INCHES NOMINAL
AASK HEAD STYLE HEXAGON
AHYM NOMINAL THREAD DIAMETER 0.312 INCHES

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