5306-01-201-4731, BOLT,MACHINE

National Stock Number:
5306-01-201-4731

Federal Supply Class:
5306

National Item Identification Number:
012014731

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:

NAS6206P27

80205

NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	2.127 INCHES MINIMUM AND
	2.157 INCHES MAXIMUM
MATERIAL	STEEL COMP E4340 OR
	STEEL COMP 8740 OVERALL
THREAD LENGTH	0.429 INCHES MINIMUM AND
	0.479 INCHES MAXIMUM
HEAD STYLE	DISHED HEXAGON
THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.375 INCHES
THREAD QUANTITY PER INCH	24
THREAD CLASS	3A
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR
	MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR
	AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND
	40.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.188 INCHES MINIMUM AND
	0.203 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.554 INCHES MINIMUM AND
	0.564 INCHES MAXIMUM
LOCKING FEATURE	PATCH THREADS
GRIP LENGTH	1.678 INCHES MINIMUM AND
	1.688 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA	80205-NAS6206 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT

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