5306-00-851-3505, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-851-3505

Federal Supply Class:
5306

National Item Identification Number:
008513505

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:

10889722	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12380100	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
5306008513505	A00AM	E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
5306008513505	SCY13	E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.040 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	3.680 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	5.030 INCHES MINIMUM AND 5.090 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL	STEEL COMP 8640 OR STEEL COMP 4140 OR STEEL COMP 8637 OVERALL
NOMINAL THREAD DIAMETER	0.562 INCHES
SECOND DIAMETER FROM HEAD	0.504 INCHES MINIMUM AND 0.506 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.380 INCHES MINIMUM AND 1.440 INCHES MAXIMUM
THREAD QUANTITY PER INCH	12
THREAD SERIES DESIGNATOR	UNC

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