5306-00-550-2912, BOLT,MACHINE

National Stock Number:
5306-00-550-2912

Federal Supply Class:
5306

National Item Identification Number:
005502912

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:

3416B552P2	30464	GENERAL ELECTRIC CO LARGE STEAM TURBINE-GENERATOR DEPT
416B552P2	07482	GENERAL ELECTRIC COMPANY

Techincal Specification:

EXTENDED WASHER DIAMETER	0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM
FASTENER LENGTH	1.160 INCHES MINIMUM AND 1.180 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
GRIP LENGTH	0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
HEAD HEIGHT	0.400 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
MATERIAL DOCUMENT AND CLASSIFICATION	C50T22 FSCM 07482 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2403 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE FINISH	16.0 MICROINCHES GRIP
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENT	NICKEL OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.820 INCHES MINIMUM AND 0.860 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF
WIDTH BETWEEN FLATS	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM

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