5306-99-738-8982, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-99-738-8982

Federal Supply Class:
5306

National Item Identification Number:
997388982

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:

1542-1034	K0131	GOODRICH LIMITED
1542-1034	K1464	GOODRICH CONTROL SYSTEMS LTD T/A GOODRICH ENGINE CONTROL SYSTEMS
1542-1034	U4287	ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED

Techincal Specification:

FASTENER LENGTH	1.738 INCHES MINIMUM AND 1.763 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.1811 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM
HARDNESS RATING	341.0 BRINELL STANDARD MINIMUM AND 388.0 BRINELL STANDARD MAXIMUM
HEAD HEIGHT	0.2882 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	DTD 5066 MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	159040 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
WIDTH BETWEEN FLATS	0.3025 INCHES MINIMUM AND 0.3225 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNJF
CRITICALITY CODE JUSTIFICATION	AASU AND AATB AND AAWC
EXTENDED WASHER THICKNESS	0.060 INCHES MINIMUM
EXTENDED WASHER DIAMETER	0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM

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