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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
17943 FEDERAL MANUFACTURING CORPORATION

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CQQR THREAD PITCH IN MILLIMETERS 1.5
CSYM SURFACE FINISH 3.2 MICROMETERS BEARING SURFACE OF HEAD
AHYM NOMINAL THREAD DIAMETER 10.0 MILLIMETERS
CSYM SURFACE FINISH 3.2 MICROMETERS GRIP
CSYM SURFACE FINISH 3.2 MICROMETERS THREADS
AAJF THREAD DIRECTION RIGHT-HAND
MATT MATERIAL IRON ALLOY 660 OVERALL
CQWR EXTERNAL THREAD TOLERANCE CLASS 6G
AAUR GRIP DIAMETER 9.985 MILLIMETERS MINIMUM AND 10.000 MILLIMETERS MAXIMUM
AASK HEAD STYLE HEXAGON
AASA THREAD LENGTH 22.0 MILLIMETERS MINIMUM
AASU HEAD HEIGHT 6.82 MILLIMETERS MINIMUM AND 7.18 MILLIMETERS MAXIMUM
ANEE GRIP LENGTH 9.75 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM
AATB WIDTH BETWEEN FLATS 16.73 MILLIMETERS MINIMUM AND 17.00 MILLIMETERS MAXIMUM
THSD THREAD SERIES DESIGNATOR M
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASB FASTENER LENGTH 29.5 MILLIMETERS MINIMUM AND 34.5 MILLIMETERS MAXIMUM

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