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Part Number

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
17446 HUCK INTERNATIONAL INC. DBA ALCOA FA

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
THSD THREAD SERIES DESIGNATOR UNJF
AASK HEAD STYLE SPLINE DRIVE SHEAR HEAD
AAUR GRIP DIAMETER 0.5610 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 18
AAJD THREAD CLASS 3A
AAWB SHANK UNTHREADED HOLE DIAMETER 0.141 INCHES MINIMUM FIRST HOLE AND 0.146 INCHES MAXIMUM FIRST HOLE
AAJF THREAD DIRECTION RIGHT-HAND
AASU HEAD HEIGHT 0.328 INCHES NOMINAL
AASA THREAD LENGTH 0.699 INCHES MINIMUM AND 0.766 INCHES MAXIMUM
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 3.205 INCHES MINIMUM FIRST HOLE AND 3.262 INCHES MAXIMUM FIRST HOLE
MATT MATERIAL STEEL COMP XM-13 OVERALL
AHYM NOMINAL THREAD DIAMETER 0.562 INCHES
AASB FASTENER LENGTH 3.334 INCHES MINIMUM AND 3.381 INCHES MAXIMUM
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AATB WIDTH BETWEEN FLATS 0.904 INCHES MINIMUM AND 0.912 INCHES MAXIMUM
ANEE GRIP LENGTH 2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM

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