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Part Number

Part Number:
NSN:
NIIN:
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
0ZC92 HEARTLAND PRECISION FASTENERS INC.

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CMLP THREAD QUANTITY PER INCH 24
CMLP THREAD QUANTITY PER INCH 24
AATC EXTENDED WASHER DIAMETER 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM
AASU HEAD HEIGHT 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNJF
MATT MATERIAL STEEL CORROSION RESISTING OVERALL
AAJD THREAD CLASS 3A
AASA THREAD LENGTH 0.589 INCHES MINIMUM AND 0.639 INCHES MAXIMUM
ANEE GRIP LENGTH 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AAUR GRIP DIAMETER 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
AATD EXTENDED WASHER THICKNESS 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM
AAUB HOLE DIAMETER 0.055 INCHES NOMINAL
ASXK HOLE QUANTITY 4
AATB WIDTH BETWEEN FLATS 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
CRHC HOLE CONFIGURATION STYLE HEXAGON LONGITUDINAL HOLE
BQDM HOLE TYPE DRILLED
AHYM NOMINAL THREAD DIAMETER 0.375 INCHES
AASB FASTENER LENGTH 2.037 INCHES MINIMUM AND 2.067 INCHES MAXIMUM
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASK HEAD STYLE DOUBLE HEXAGON W/HOLE

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