5306-00-680-6619 BOLT,MACHINE Index 5310-00-680-6627 NUT,PLAIN,HEXAGON

National Stock Number:
5306-00-680-6622

Federal Supply Class:
5306

National Item Identification Number:
006806622

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
678492024617GENERAL MOTORS CORP
678492073342ALLISON TRANSMISSION INC


Techincal Specification:
EXTENDED WASHER DIAMETER0.500 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
FASTENER LENGTH1.000 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.375 INCHES NOMINAL
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH123000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH24


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