5306-01-159-6571, BOLT,EXTERNALLY RELIEVED BODY

5306-01-159-6572 BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-01-159-6571

Federal Supply Class:
5306

National Item Identification Number:
011596571

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:

W-142243	0AT62	SIEMENS ENERGY, INC.
W-142243	830Q4	CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
W-142243	88663	DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	4.128 INCHES MINIMUM AND 5.120 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	5.097 INCHES MINIMUM AND 5.315 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.767 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
HEAD HEIGHT	0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
HEAD STYLE	HEXAGON
HOLE CONFIGURATION STYLE	HEXAGON FLATS
HOLE DIAMETER	0.063 INCHES MINIMUM AND 0.187 INCHES MAXIMUM
HOLE QUANTITY	1
HOLE TYPE	DRILLED
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.875 INCHES
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.938 INCHES MINIMUM AND 1.062 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	3
WIDTH BETWEEN FLATS	1.248 INCHES MINIMUM AND 1.372 INCHES MAXIMUM

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