5306-00-867-9316, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-867-9316

Federal Supply Class:
5306

National Item Identification Number:
008679316

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:

A51A11906-11	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
A51A11906-11	61174	NORTHROP GRUMMAN SYSTEMS CORPORATION
A51A11906-11	79RG9	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.870 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	2.625 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.856 INCHES MINIMUM AND 1.858 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	3.031 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.125 INCHES NOMINAL
HEAD STYLE	HEXAGON
MATERIAL	STEEL COMP 431 OVERALL
NOMINAL THREAD DIAMETER	0.190 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
SECOND DIAMETER FROM HEAD	0.144 INCHES MINIMUM AND 0.147 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.406 INCHES MINIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNF

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