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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
78062 DOVER ENGINEERED SYSTEMS, INC. DBA S

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 1.266 INCHES NOMINAL FIRST HOLE
ANEE GRIP LENGTH 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM
AASA THREAD LENGTH 0.266 INCHES NOMINAL
MATT MATERIAL STEEL COMP 431 OVERALL
AAWB SHANK UNTHREADED HOLE DIAMETER 0.070 INCHES MAXIMUM FIRST HOLE AND 0.080 INCHES MAXIMUM FIRST HOLE
AAUR GRIP DIAMETER 0.1889 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM
AAJD THREAD CLASS 3A
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
AAJF THREAD DIRECTION RIGHT-HAND
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
AASB FASTENER LENGTH 1.406 INCHES MINIMUM AND 1.437 INCHES MAXIMUM
AATB WIDTH BETWEEN FLATS 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNF
AASK HEAD STYLE HEXAGON
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
CMLP THREAD QUANTITY PER INCH 32
AASU HEAD HEIGHT 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM

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