5306-01-150-6618, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-150-6618

Federal Supply Class:
5306

National Item Identification Number:
011506618

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:

10116013	A486G	NIMIKKEISTOKESKUS NCB FINLAND
74A732001-2007	76301	THE BOEING COMPANY

Techincal Specification:

THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.375 INCHES
THREAD QUANTITY PER INCH	24
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.700 INCHES NOMINAL
FASTENER LENGTH	11.390 INCHES NOMINAL
MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6411 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLE	DOUBLE HEXAGON W/HOLE
HEAD HEIGHT	0.250 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.430 INCHES MINIMUM AND
	0.439 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.620 INCHES NOMINAL
POINT STYLE	CUP
POINT LENGTH	0.132 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FIRST DIAMETER FROM HEAD	0.300 INCHES NOMINAL
SECOND DIAMETER FROM HEAD	0.570 INCHES MINIMUM AND
	0.580 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.373 INCHES MINIMUM AND
	0.375 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	9.230 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	9.460 INCHES MINIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	10.426 INCHES MINIMUM
SPECIAL FEATURES	ONE HOLE IN UNDERCUT 0.1255 IN. DIA MAX AND 0.1250 IN. DIA MIN; 1.730 IN. FROM HEAD TOP TO CENTER OF HOLE; SPHERICAL PAD ON SHOULDER 0.370 IN. DIA MIN AND 0.372 IN DIA MAX 0.630 IN. FROM HEAD TOP TO MIDDLE OF SPHER; THREE HOLES IN THE HEAD 0.046 IN. DIA MIN AND 0.056 IN. DIA MAX

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