5306-00-105-4531, BOLT,MACHINE

National Stock Number:
5306-00-105-4531

Federal Supply Class:
5306

National Item Identification Number:
001054531

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:

6865397	73342	ALLISON TRANSMISSION INC
CA4553	29372	HOWMET GLOBAL FASTENING SYSTEMS INC.

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	0.750 INCHES MINIMUM AND
	0.765 INCHES MAXIMUM
MATERIAL	STEEL CORROSION RESISTING OVERALL
THREAD LENGTH	0.312 INCHES MINIMUM AND
	0.337 INCHES MAXIMUM
HEAD STYLE	CROWNED HEXAGON
THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.190 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	3A
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR
	AMS 5736 ASSN STD SINGLE MATERIAL RESPONSE OR
	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OR
	54-71A,FSCM 73342 MFR REF SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	248.0 BRINELL STANDARD MINIMUM AND
	341.0 BRINELL STANDARD MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	130000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	85000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.095 INCHES MINIMUM AND
	0.110 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.367 INCHES MINIMUM AND
	0.376 INCHES MAXIMUM
GRIP LENGTH	0.428 INCHES MINIMUM AND
	0.438 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
	32.0 MICROINCHES GRIP
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.675 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES MINIMUM AND
	0.086 INCHES MAXIMUM FIRST HOLE
FEATURES PROVIDED	FINISHED HEAD
SPECIAL FEATURES	SPRING LOADED BALL IN SHANK 0.244 IN. FROM HEAD
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	73342
MFR SOURCE CONTROLLING REFERENCE	6865397

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