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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
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS6207 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AASU HEAD HEIGHT 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNJF
AASA THREAD LENGTH 0.503 INCHES MINIMUM AND 0.553 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 1.429 INCHES MINIMUM FIRST HOLE AND 1.479 INCHES MAXIMUM FIRST HOLE
AAJF THREAD DIRECTION RIGHT-HAND
MATT MATERIAL STEEL COMP 8740 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 4340 OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
AAUR GRIP DIAMETER 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
CQFM HARDNESS RATING 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL
AASK HEAD STYLE DISHED HEXAGON
AHYM NOMINAL THREAD DIAMETER 0.438 INCHES
ANEE GRIP LENGTH 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
AAWB SHANK UNTHREADED HOLE DIAMETER 0.106 INCHES MINIMUM FIRST HOLE AND 0.116 INCHES MAXIMUM FIRST HOLE
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
AATB WIDTH BETWEEN FLATS 0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 20
AASB FASTENER LENGTH 1.638 INCHES MINIMUM AND 1.668 INCHES MAXIMUM

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