5306-00-138-9540, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-138-9540

Federal Supply Class:
5306

National Item Identification Number:
001389540

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:

232391Y13	0AHP5	CURTISS-WRIGHT CONTROLS, INC.
60A52B154 REV C	75370	KAYDON RING & SEAL INC

Techincal Specification:

SECOND DIAMETER FROM HEAD	0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF
WIDTH BETWEEN FLATS	0.560 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.100 INCHES MINIMUM AND 1.110 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.710 INCHES NOMINAL
CRITICALITY CODE JUSTIFICATION	AAWC
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	1.560 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.4547 INCHES MINIMUM AND 0.4550 INCHES MAXIMUM
HARDNESS RATING	32.0 ROCKWELL C MINIMUM OVERALL AND 36.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	1.000 INCHES NOMINAL
HEAD HEIGHT	0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM
HEAD STYLE	ROUND W/WRENCH FLATS CHAMFERED
NOMINAL THREAD DIAMETER	0.375 INCHES
MATERIAL	STEEL COMP 8740 OVERALL

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