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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
99238 AIR FORCE STANDARD

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SFTT SURFACE TREATMENT CADMIUM OVERALL OR ZINC OVERALL
CBBL FEATURES PROVIDED FINISHED HEAD
CMLP THREAD QUANTITY PER INCH 18
AASA THREAD LENGTH 0.734 INCHES MINIMUM AND 0.845 INCHES MAXIMUM
AASU HEAD HEIGHT 0.195 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
MDCL MATERIAL DOCUMENT AND CLASSIFICATION SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
AAJF THREAD DIRECTION RIGHT-HAND
CQBC MINIMUM TENSILE STRENGTH 60000 POUNDS PER SQUARE INCH
AASB FASTENER LENGTH 0.845 INCHES MINIMUM AND 0.895 INCHES MAXIMUM
MATT MATERIAL STEEL OVERALL
ZZZT NONDEFINITIVE SPEC/STD DATA 2 TYPE
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASK HEAD STYLE HEXAGON
AATB WIDTH BETWEEN FLATS 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
CQFM HARDNESS RATING 70.0 ROCKWELL B MINIMUM OVERALL AND 100.0 ROCKWELL B MAXIMUM OVERALL
AHYM NOMINAL THREAD DIAMETER 0.312 INCHES

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