5306-00-442-7404, BOLT,EXTERNALLY RELIEVED BODY

5306-00-442-7405 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-442-7404

Federal Supply Class:
5306

National Item Identification Number:
004427404

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:

68B50076P1

07868

DEPARTMENT OF VETERANS AFFAIRS FEDERAL CREDIT UNION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	1.546 INCHES MINIMUM AND 1.578 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.290 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.410 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	2.015 INCHES MINIMUM AND 2.062 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
HEAD HEIGHT	0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 431 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SECOND DIAMETER FROM HEAD	0.200 INCHES NOMINAL
THIRD DIAMETER FROM HEAD	0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.437 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	28
WIDTH BETWEEN FLATS	0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM

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