5306-00-478-2761, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-478-2761

Federal Supply Class:
5306

National Item Identification Number:
004782761

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:

125S230

0AHP5

CURTISS-WRIGHT CONTROLS, INC.

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.700 INCHES MINIMUM AND 0.720 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.100 INCHES MINIMUM AND 1.110 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	1.560 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.4597 INCHES MINIMUM AND 0.4600 INCHES MAXIMUM
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.219 INCHES NOMINAL
HEAD DIAMETER	0.750 INCHES NOMINAL
HEAD STYLE	ROUND W/WRENCH FLATS CHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SECOND DIAMETER FROM HEAD	0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.560 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS2400-1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
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

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