5306-00-930-8966, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-930-8966

Federal Supply Class:
5306

National Item Identification Number:
009308966

Description:
BOLT,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Manufacturer Information:

496340	09594	NEWELL WINDOW FURNISHINGS CO
496340	11449	TURBO POWER & MARINE SYSTEM INC SUB OF UNITED TECHNOLOGIES CORP
496340	21128	JDMC ENTERPRISES DBA HIGH SPEED MACHINE PRODUCTS
496340	77445	RTX CORPORATION
496340	J1695	KITO MFG CO. LTD
496340	S0254	KITO MFG CO. LTD

Techincal Specification:

THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.388 INCHES NOMINAL
FASTENER LENGTH	1.581 INCHES MINIMUM AND
	1.602 INCHES MAXIMUM
MATERIAL	STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	35.0 ROCKWELL C MINIMUM AND
	40.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	ROUND W/WRENCH FLATS
HEAD DIAMETER	0.615 INCHES MINIMUM AND
	0.635 INCHES MAXIMUM
HEAD HEIGHT	0.115 INCHES MINIMUM AND
	0.135 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.492 INCHES MINIMUM AND
	0.502 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FIRST DIAMETER FROM HEAD	0.372 INCHES MINIMUM AND
	0.373 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD	0.264 INCHES NOMINAL
THIRD DIAMETER FROM HEAD	0.190 INCHES MINIMUM AND
	0.200 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.264 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.191 INCHES MINIMUM AND
	0.192 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.371 INCHES MINIMUM AND
	0.402 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.971 INCHES MINIMUM AND
	1.002 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	1.131 INCHES MINIMUM AND
	1.152 INCHES MAXIMUM
SPECIAL FEATURES	THIRD DIA FROM HEAD IS 0.031-0.062R ON ENDS; GROOVE AFTER FOURTH DIA FROM HEAD IS 0.185 PORM 0.010 IN. DIA

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