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Part Number:
NSN:
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Item Name:
BOLT , SHEAR

Definition:

A HIGH STRENGTH, 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH EXTERNALLY THREADED FASTENER DESIGNED FOR USE IN APPLICATIONS INVOLVING GREAT SHEAR STRESS. THE HEAD IS DESIGNED TO ACCOMMODATE AN EXTERNAL WRENCH OR DRIVER. 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. THE UNTHREADED PORTION IS OF SPECIFIC 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. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE BOLT, MACHINE AND BOLT, CLEVIS.

CAGE Information

Code Company
06950 ALCOA GLOBAL FASTENERS INC. DBA ALCO

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
THSD THREAD SERIES DESIGNATOR UNJF
AAJD THREAD CLASS 3A
ANEE GRIP LENGTH 3.115 INCHES MINIMUM AND 3.135 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.875 INCHES
AASB FASTENER LENGTH 4.101 INCHES MINIMUM AND 4.148 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
CQBC MINIMUM TENSILE STRENGTH 220000 POUNDS PER SQUARE INCH
CMLP THREAD QUANTITY PER INCH 14
AATB WIDTH BETWEEN FLATS 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM
AAWB SHANK UNTHREADED HOLE DIAMETER 0.136 INCHES MINIMUM FIRST HOLE AND 0.146 INCHES MAXIMUM FIRST HOLE
AASU HEAD HEIGHT 0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 3.967 INCHES MINIMUM FIRST HOLE AND 3.999 INCHES MAXIMUM FIRST HOLE
CQFM HARDNESS RATING 46.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL
AASK HEAD STYLE DOUBLE HEXAGON
MATT MATERIAL STEEL COMP H11 OVERALL
ZZZK SPECIFICATION/STANDARD DATA 85495-B-17020 MANUFACTURERS STANDARD
AAUR GRIP DIAMETER 0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASA THREAD LENGTH 0.966 INCHES MINIMUM AND 1.033 INCHES MAXIMUM

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