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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
73197 HI-SHEAR CORPORATION

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CMLP THREAD QUANTITY PER INCH 24
AGAV END ITEM IDENTIFICATION F/A-18 E/F AIRCRAFT
THSD THREAD SERIES DESIGNATOR UNJF
AATD EXTENDED WASHER THICKNESS 0.054 INCHES NOMINAL
FEAT SPECIAL FEATURES WRENCHING ELEMENTS - 14
CXCY PART NAME ASSIGNED BY CONTROLLING AGENCY BOLT-CLOSE TOLERANCE, SPLINE DRIVE, FLANGE HEAD (220 KSI FTU) CRES
AAJD THREAD CLASS 3A
AATC EXTENDED WASHER DIAMETER 0.691 INCHES MINIMUM AND 0.701 INCHES MAXIMUM
AASK HEAD STYLE SPLINE EXTENDED WASHER
AASB FASTENER LENGTH 1.6765 INCHES NOMINAL
AASA THREAD LENGTH 0.614 INCHES NOMINAL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
AAJF THREAD DIRECTION RIGHT-HAND
AAUR GRIP DIAMETER 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
ANEE GRIP LENGTH 1.0625 INCHES NOMINAL
CQBC MINIMUM TENSILE STRENGTH 220000 POUNDS PER SQUARE INCH
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5629, PH13-8MO ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATT MATERIAL STEEL COMP XM-13 OVERALL
CRTL CRITICALITY CODE JUSTIFICATION AGAV
AAZH HEAD MINOR DIAMETER 0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
AASU HEAD HEIGHT 0.337 INCHES NOMINAL
AHYM NOMINAL THREAD DIAMETER 0.3750 INCHES
SFTT SURFACE TREATMENT PASSIVATE OVERALL

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