5306-00-865-9397, BOLT,MACHINE

National Stock Number:
5306-00-865-9397

Federal Supply Class:
5306

National Item Identification Number:
008659397

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:

3002T68P01

99207

GENERAL ELECTRIC COMPANY

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	2.375 INCHES NOMINAL
MATERIAL	STEEL COMP 8740 OVERALL
THREAD LENGTH	0.750 INCHES MINIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	3A
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2481 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND
	32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.320 INCHES MINIMUM AND
	0.340 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.304 INCHES MINIMUM AND
	0.313 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.428 INCHES MINIMUM AND
	0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.060 INCHES MINIMUM AND
	0.070 INCHES MAXIMUM
HOLE CONFIGURATION STYLE	DOUBLE HEXAGON LONGITUDINAL HOLE
HOLE TYPE	DRILLED
HOLE QUANTITY	4
HOLE DIAMETER	0.062 INCHES NOMINAL
GRIP LENGTH	1.625 INCHES NOMINAL
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
	63.0 MICROINCHES GRIP
	32.0 MICROINCHES THREADS
FEATURES PROVIDED	UNFINISHED HEAD
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT

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