5306-00-021-4259, BOLT,MACHINE

National Stock Number:
5306-00-021-4259

Federal Supply Class:
5306

National Item Identification Number:
000214259

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:

214259	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
214259	24617	GENERAL MOTORS CORP
9408997	24617	GENERAL MOTORS CORP
MIL-B-45912	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS35764-1120	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS35764-520	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	1.670 INCHES MINIMUM AND
	1.750 INCHES MAXIMUM
MATERIAL	STEEL OVERALL
THREAD LENGTH	1.594 INCHES MINIMUM AND
	1.750 INCHES MAXIMUM
HEAD STYLE	UNDERCUT HEXAGON
THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.750 INCHES
THREAD QUANTITY PER INCH	16
THREAD CLASS	2A
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A449,GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR
	SAE J429,GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR
	GM 300-M MFR REF SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OR
	ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR
	ASTM B633,TYPE 1,CLASS 3 ASSN STD 2ND TREATMENT RESPONSE OVERALL
HARDNESS RATING	25.0 ROCKWELL C MINIMUM AND
	34.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.438 INCHES MINIMUM AND
	0.458 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.985 INCHES MINIMUM AND
	1.000 INCHES MAXIMUM
LOCKING FEATURE	DISTORTIONS BEARING SURFACE OF HEAD
FEATURES PROVIDED	FINISHED HEAD
DEPARTURE FROM CITED DOCUMENT	AS MODIFIED BY OPTIONAL ZINC COATED SURF. TREAT.
SPECIFICATION/STANDARD DATA	81349-MIL-B-45912 GOVERNMENT SPECIFICATION AND
	96906-MS35764 REV D/INACTIVE/ GOVERNMENT STANDARD
NONDEFINITIVE SPEC/STD DATA	B COMPOSITION
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-B-45912
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS35764-1120

Click here to Register for Free 30-day Trial