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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
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AATB WIDTH BETWEEN FLATS 0.741 INCHES MINIMUM AND 0.751 INCHES MAXIMUM
ANEE GRIP LENGTH 1.735 INCHES MINIMUM AND 1.765 INCHES MAXIMUM
AAJD THREAD CLASS 3A
AASB FASTENER LENGTH 2.577 INCHES MINIMUM AND 2.607 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.500 INCHES
AAJF THREAD DIRECTION RIGHT-HAND
MATT MATERIAL IRON ALLOY 660 OVERALL
AASU HEAD HEIGHT 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNF
CQBC MINIMUM TENSILE STRENGTH 140000 POUNDS PER SQUARE INCH
AASK HEAD STYLE HEXAGON
AASA THREAD LENGTH 0.842 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 20
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SFTT SURFACE TREATMENT PASSIVATE OVERALL
CBBL FEATURES PROVIDED CASEHARDENED AND FINISHED HEAD

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