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Part Number

Part Number:
NSN:
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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
06710 VALLEY-TODECO INC.

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CMLP THREAD QUANTITY PER INCH 24
ANEE GRIP LENGTH 1.550 INCHES NOMINAL
THSD THREAD SERIES DESIGNATOR UNJF
AASK HEAD STYLE SPLINE DRIVE SHEAR HEAD
AAJD THREAD CLASS 3A
AASB FASTENER LENGTH 1.931 INCHES MINIMUM AND 1.951 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AAUR GRIP DIAMETER 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
AASU HEAD HEIGHT 0.210 INCHES NOMINAL
AAZH HEAD MINOR DIAMETER 0.578 INCHES MINIMUM AND 0.585 INCHES MAXIMUM
AGAV END ITEM IDENTIFICATION F18 E/F
MATT MATERIAL STEEL COMP XM-13 OVERALL
AAWB SHANK UNTHREADED HOLE DIAMETER 0.106 INCHES MINIMUM FIRST HOLE AND 0.111 INCHES MAXIMUM FIRST HOLE
CQBC MINIMUM TENSILE STRENGTH 125000 POUNDS PER SQUARE INCH
AASA THREAD LENGTH 0.391 INCHES NOMINAL
AHYM NOMINAL THREAD DIAMETER 0.375 INCHES
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 1.823 INCHES MINIMUM FIRST HOLE AND 1.833 INCHES MAXIMUM FIRST HOLE
CXCY PART NAME ASSIGNED BY CONTROLLING AGENCY BOLT-CLOSE TOLERANCE,SPLINE DRIVE, CRES (125 KSI FSU)DRILLED, SHORT THREAD
SFTT SURFACE TREATMENT PASSIVATE OVERALL

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