5306-00-679-9855, BOLT,MACHINE

National Stock Number:
5306-00-679-9855

Federal Supply Class:
5306

National Item Identification Number:
006799855

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Manufacturer Information:

5306006799855	A00AM	E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
5306006799855	SCY13	E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
8756521	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	6.109 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	6.250 INCHES NOMINAL
FEATURES PROVIDED	FINISHED HEAD
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.297 INCHES NOMINAL
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A331 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A322 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A331 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A322 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A331 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A322 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A331 ASSN STD 4TH MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 1340 OR STEEL COMP 4140 OR STEEL COMP 5140 OR STEEL COMP 8640 OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.109 INCHES NOMINAL FIRST HOLE
WIDTH BETWEEN FLATS	0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	20

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