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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
98897 LOCKHEED MARTIN CORPORATION DBA LOCK

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 1.021 INCHES NOMINAL FIRST HOLE
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 1.021 INCHES NOMINAL FIRST HOLE
CBBL FEATURES PROVIDED FINISHED HEAD
AAJD THREAD CLASS 3A
AATB WIDTH BETWEEN FLATS 0.625 INCHES NOMINAL
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
CMLP THREAD QUANTITY PER INCH 28
AASB FASTENER LENGTH 1.146 INCHES NOMINAL
AAJF THREAD DIRECTION RIGHT-HAND
AASA THREAD LENGTH 0.268 INCHES MINIMUM
AASU HEAD HEIGHT 0.125 INCHES NOMINAL
THSD THREAD SERIES DESIGNATOR UNF
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CQBC MINIMUM TENSILE STRENGTH 125000 POUNDS PER SQUARE INCH
AAWB SHANK UNTHREADED HOLE DIAMETER 0.075 INCHES MINIMUM FIRST HOLE AND 0.080 INCHES MAXIMUM FIRST HOLE
AASK HEAD STYLE ROUND W/WRENCH FLATS
AASL HEAD DIAMETER 0.750 INCHES NOMINAL
MATT MATERIAL STEEL COMP 8630 OVERALL

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