5306-00-354-1291, BOLT,EXTERNALLY RELIEVED BODY

5306-00-354-1292 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-354-1291

Federal Supply Class:
5306

National Item Identification Number:
003541291

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:

5173362	24617	GENERAL MOTORS CORP
5173362	72582	ROLLS-ROYCE SOLUTIONS AMERICA INC
5173362	7X677	GENERAL MOTORS LLC
PC5173362	C7432	POWER COMPONENTS (DEUTSCHLAND) GMBH

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.250 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.344 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	0.781 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.311 INCHES MINIMUM AND 0.314 INCHES MAXIMUM
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.188 INCHES NOMINAL
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	G-300M,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	135000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.312 INCHES
SECOND DIAMETER FROM HEAD	0.281 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.500 INCHES NOMINAL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.438 INCHES MINIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	24

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