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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
CMLP THREAD QUANTITY PER INCH 24
MATT MATERIAL STEEL COMP 4140 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 4037 OVERALL
THSD THREAD SERIES DESIGNATOR UNJF
CBBL FEATURES PROVIDED FINISHED HEAD
CQBC MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
AAUB HOLE DIAMETER 0.070 INCHES NOMINAL
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS566 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
AATB WIDTH BETWEEN FLATS 0.552 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
ASXK HOLE QUANTITY 3
CQFM HARDNESS RATING 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL
AASU HEAD HEIGHT 0.281 INCHES NOMINAL
AASB FASTENER LENGTH 0.9538 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
CRHC HOLE CONFIGURATION STYLE HEXAGON CORNERS
AASK HEAD STYLE HEXAGON
BQDM HOLE TYPE DRILLED
AHYM NOMINAL THREAD DIAMETER 0.375 INCHES
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
AASA THREAD LENGTH 0.893 INCHES MINIMUM AND 0.970 INCHES MAXIMUM

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