5306-99-366-5431, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-99-366-5431

Federal Supply Class:
5306

National Item Identification Number:
993665431

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:

BLT 7164

K0378

ROLLS-ROYCE PLC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	0.545 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.040 INCHES MINIMUM
EXTENDED WASHER DIAMETER	0.369 INCHES MINIMUM AND 0.381 INCHES MAXIMUM
FASTENER LENGTH	0.938 INCHES NOMINAL AND 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.137 INCHES MINIMUM AND 0.142 INCHES MAXIMUM
HEAD HEIGHT	0.248 INCHES MINIMUM AND 0.268 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
III PART NAME ASSIGNED BY CONTROLLING AGENCY	BOLT
NOMINAL THREAD DIAMETER	0.190 INCHES
WIDTH BETWEEN FLATS	0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.383 INCHES NOMINAL
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNJF

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