5306-01-175-8765, BOLT,EXTERNALLY RELIEVED BODY

5306-01-175-8764 BOLT,EXTERNALLY RELIEVED BODY

5306-01-175-8766 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-175-8765

Federal Supply Class:
5306

National Item Identification Number:
011758765

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:

99-781-0380	99995	NATO STOCK NUMBER ASSIGNED BY ANOTHER NATION
99-781-0380	INTE9	NATO STOCK NUMBER ASSIGNED BY ANOTHER NATION
B490389	K0378	ROLLS-ROYCE PLC

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	0.320 INCHES NOMINAL
FASTENER LENGTH	1.150 INCHES NOMINAL
MATERIAL	STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	DTD 5066 FSCM K0378 MFR REF SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	RSP 170 FSCM K0378 MFR REF SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE	DEE CHAMFER
HEAD DIAMETER	0.512 INCHES NOMINAL
HEAD HEIGHT	0.150 INCHES NOMINAL
DISTANCE FROM CENTERLINE TO FLAT	0.187 INCHES MINIMUM AND
	0.192 INCHES MAXIMUM
HOLE CONFIGURATION STYLE	ROUND
HOLE TYPE	DRILLED
HOLE QUANTITY	1
HOLE DIAMETER	0.669 INCHES MINIMUM AND
	0.739 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FIRST DIAMETER FROM HEAD	0.190 INCHES MINIMUM AND
	0.195 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD	0.190 INCHES MINIMUM AND
	0.195 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.310 INCHES MINIMUM AND
	0.340 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.800 INCHES MINIMUM AND
	0.830 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE	K0378
DESIGN CONTROL REFERENCE	B490389

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