5360-01-203-2620 SPRING,VOLUTE Index 5306-01-203-2622 BOLT,MACHINE

National Stock Number:
5306-01-203-2621

Federal Supply Class:
5306

National Item Identification Number:
012032621

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:
J645P10B07482GENERAL ELECTRIC COMPANY
J645P10B58828CFM INTERNATIONAL INC


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONFEAT
EXTENDED WASHER DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
FASTENER LENGTH0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
HEAD HEIGHT0.328 INCHES MINIMUM AND 0.348 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
HOLE CONFIGURATION STYLEDOUBLE HEXAGON FLATS
HOLE DIAMETER0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
HOLE QUANTITY2
HOLE TYPEDRILLED
MATERIALNICKEL ALLOY 718 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
SPECIAL FEATURESPART IS ESSENTIAL TO WEAPON SYSTEM PERFORMANCE
WIDTH BETWEEN FLATS0.3750 INCHES NOMINAL
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.719 INCHES MINIMUM AND 0.822 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNJF


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