5306-00-395-7276, BOLT,MACHINE

National Stock Number:
5306-00-395-7276

Federal Supply Class:
5306

National Item Identification Number:
003957276

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:

4023146	11449	TURBO POWER & MARINE SYSTEM INC SUB OF UNITED TECHNOLOGIES CORP
4023146	77445	RTX CORPORATION
4023146	93907	TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM FIRST HOLE
EXTENDED WASHER DIAMETER	0.408 INCHES MINIMUM AND 0.409 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
FASTENER LENGTH	0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
HEAD HEIGHT	0.700 INCHES MINIMUM AND 0.730 INCHES MAXIMUM
HEAD STYLE	SQUARE EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	IRON ALLOY 660 OVERALL
NOMINAL THREAD DIAMETER	0.190 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS	0.241 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.353 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	32

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