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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
ANEE GRIP LENGTH 1.046 INCHES MINIMUM AND 1.078 INCHES MAXIMUM
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS501 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
CBBL FEATURES PROVIDED FINISHED HEAD
AASA THREAD LENGTH 0.437 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
AAJD THREAD CLASS 3A
AAWB SHANK UNTHREADED HOLE DIAMETER 0.076 INCHES NOMINAL FIRST HOLE
MATT MATERIAL STEEL COMP 321 OVERALL OR STEEL COMP 347 OVERALL
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
AATB WIDTH BETWEEN FLATS 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 28
AAJF THREAD DIRECTION RIGHT-HAND
AASB FASTENER LENGTH 1.515 INCHES MINIMUM AND 1.562 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNF
AASK HEAD STYLE HEXAGON
AASU HEAD HEIGHT 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 1.358 INCHES MINIMUM FIRST HOLE AND 1.390 INCHES MAXIMUM FIRST HOLE
SFTT SURFACE TREATMENT PASSIVATE OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763,CL 8,TY A FED SPEC ALL MATERIAL RESPONSES OVERALL

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