5306-01-393-0849, BOLT,MACHINE

National Stock Number:
5306-01-393-0849

Federal Supply Class:
5306

National Item Identification Number:
013930849

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:

624254-1432DN3

80020

NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2

Techincal Specification:

	0.875 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.868 INCHES MINIMUM AND
	0.879 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	1.293 INCHES MINIMUM AND
	1.312 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.333 INCHES MINIMUM AND
	0.353 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	3.969 INCHES MINIMUM AND
	4.031 INCHES MAXIMUM
MATERIAL	STEEL COMP 4140 OR
	STEEL COMP E4340 OR
	STEEL COMP 8640 OVERALL
THREAD LENGTH	3.266 INCHES NOMINAL
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.875 INCHES
THREAD QUANTITY PER INCH	9
THREAD CLASS	3A
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR
	MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR
	ASTM A29 GR 8640 ASSN STD 3RD MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416, TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND
	37.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.864 INCHES MINIMUM AND

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