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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
03538 LOCKHEED MARTIN CORPORATION DBA MS2

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CQFM HARDNESS RATING 23.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL
CQFM HARDNESS RATING 23.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL
AATB WIDTH BETWEEN FLATS 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
AASA THREAD LENGTH 0.500 INCHES NOMINAL
AASU HEAD HEIGHT 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM
CBBL FEATURES PROVIDED FINISHED HEAD
CMLP THREAD QUANTITY PER INCH 18
MDCL MATERIAL DOCUMENT AND CLASSIFICATION SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CSYM SURFACE FINISH 63.0 MICROINCHES THREADS
AAJF THREAD DIRECTION RIGHT-HAND
CQBC MINIMUM TENSILE STRENGTH 120000 POUNDS PER SQUARE INCH
AASB FASTENER LENGTH 0.500 INCHES NOMINAL
MATT MATERIAL STEEL OVERALL
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASK HEAD STYLE HEXAGON
ZZZT NONDEFINITIVE SPEC/STD DATA 10- STYLE AND 2 TYPE AND 5 GRADE
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
AHYM NOMINAL THREAD DIAMETER 0.312 INCHES

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