5306-01-130-2517, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-130-2517

Federal Supply Class:
5306

National Item Identification Number:
011302517

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:

10115804	A486G	NIMIKKEISTOKESKUS NCB FINLAND
74A880675-2001	76301	THE BOEING COMPANY

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	2.438 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF TENTH DIAMETER	3.625 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	3.063 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	4.050 INCHES NOMINAL
FOURTH DIAMETER FROM HEAD	0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD HEIGHT	0.110 INCHES NOMINAL
HEAD STYLE	DISHED HEXAGON
MATERIAL	ALUMINUM ALLOY OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SECOND DIAMETER FROM HEAD	0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.185 INCHES MINIMUM AND 0.188 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.425 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNJF
THREAD QUANTITY PER INCH	28

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