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Part Number

Part Number:
NSN:
NIIN:
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
26512 NORTHROP GRUMMAN SYSTEMS CORPORATION

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AASB FASTENER LENGTH 2.500 INCHES MINIMUM AND 2.547 INCHES MAXIMUM
AASB FASTENER LENGTH 2.500 INCHES MINIMUM AND 2.547 INCHES MAXIMUM
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 6485 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR SPS-M-107 FSCM 56878 MFR REF 2ND MATERIAL RESPONSE OVERALL
THSD THREAD SERIES DESIGNATOR UNJF
AATB WIDTH BETWEEN FLATS 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM
ANEE GRIP LENGTH 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM
ZZZK SPECIFICATION/STANDARD DATA 26512-GB511B MANUFACTURERS STANDARD
AAJD THREAD CLASS 3A
AHYM NOMINAL THREAD DIAMETER 0.500 INCHES
AAJF THREAD DIRECTION RIGHT-HAND
AASU HEAD HEIGHT 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 220000 POUNDS PER SQUARE INCH
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
MATT MATERIAL STEEL COMP H11 OVERALL OR STEEL OVERALL
AAUR GRIP DIAMETER 0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM
CQFM HARDNESS RATING 46.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL
AASK HEAD STYLE DOUBLE HEXAGON
CMLP THREAD QUANTITY PER INCH 20
AASA THREAD LENGTH 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM
SFTT SURFACE TREATMENT CADMIUM OVERALL

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