5306-00-550-2590, BOLT,MACHINE

National Stock Number:
5306-00-550-2590

Federal Supply Class:
5306

National Item Identification Number:
005502590

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:

329765	11449	TURBO POWER & MARINE SYSTEM INC SUB OF UNITED TECHNOLOGIES CORP
329765	77445	RTX CORPORATION
329765	92215	HOWMET GLOBAL FASTENING SYSTEMS INC

Techincal Specification:

EXTENDED WASHER DIAMETER	0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM
FASTENER LENGTH	0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.412 INCHES MINIMUM AND 0.432 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
HOLE CONFIGURATION STYLE	ROUND
HOLE DIAMETER	0.068 INCHES NOMINAL
HOLE QUANTITY	4
HOLE TYPE	DRILLED
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
PRECIOUS MATERIAL	SILVER
WIDTH BETWEEN FLATS	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENT	SILVER THREADS
THREAD CLASS	1A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.595 INCHES MINIMUM AND 0.615 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF

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