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Part Number:
NSN:
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Item Name:
BOLT , CLOSE TOLERANCE

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE UNTHREADED PORTION IS OF A SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001) OF AN INCH (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS ONE INCH (25 MM) OR LESS IN DIAMETER. ITEMS OVER ONE INCH (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN-THOUSANDTHS (0.0015) OF AN INCH (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001) OF AN INCH (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER, NOR IS IT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS HAVING CLOSE TOLERANCE, AND FABRICATED FROM MATERIAL HAVING 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH, SEE BOLT, SHEAR. FOR ITEMS FABRICATED FROM MATERIAL HAVING LESS THAN 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH AND NOT HAVING A CLOSE TOLERANCE, SEE BOLT, MACHINE.

CAGE Information

Code Company
16258 SPACELOK INC.

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CMLP THREAD QUANTITY PER INCH 24
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-C-8837, TYII, CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
AASU HEAD HEIGHT 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNJF
AAJD THREAD CLASS 3A
AAJF THREAD DIRECTION RIGHT-HAND
AAUR GRIP DIAMETER 0.343 INCHES MINIMUM AND 0.353 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 280000 POUNDS PER SQUARE INCH
AASA THREAD LENGTH 1.000 INCHES NOMINAL
MATT MATERIAL STEEL OVERALL
AASB FASTENER LENGTH 2.375 INCHES NOMINAL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS6514 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS6532 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
AATB WIDTH BETWEEN FLATS 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.375 INCHES
AASK HEAD STYLE DOUBLE HEXAGON
ANEE GRIP LENGTH 1.315 INCHES MINIMUM AND 1.375 INCHES MAXIMUM
AGAV END ITEM IDENTIFICATION APACHE AH-D64 HELICOPTER
SFTT SURFACE TREATMENT CADMIUM OVERALL

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