5306-00-740-7641, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-740-7641

Federal Supply Class:
5306

National Item Identification Number:
007407641

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:

5306007407641	SCY13	E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
7407641	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
K1467	G0768	KANAKAS TH. & G. O.E

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.671 INCHES MINIMUM AND 0.703 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.781 INCHES MINIMUM AND 1.845 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	2.609 INCHES MINIMUM AND 2.641 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.870 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
HEAD HEIGHT	0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
HEAD STYLE	DISHED HEXAGON
MATERIAL	STEEL COMP 1340 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER	0.875 INCHES
SECOND DIAMETER FROM HEAD	0.767 INCHES MINIMUM AND 0.777 INCHES MAXIMUM
WIDTH BETWEEN FLATS	1.108 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OR ZINC OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	3A
THREAD LENGTH	0.796 INCHES MINIMUM AND 0.828 INCHES MAXIMUM
THREAD QUANTITY PER INCH	14
THREAD SERIES DESIGNATOR	UNF

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