5306-01-281-0557, BOLT,MACHINE

National Stock Number:
5306-01-281-0557

Federal Supply Class:
5306

National Item Identification Number:
012810557

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:

5306012810557	A00AM	E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
8743903-26	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
S-21100	26233	NYLOK LLC

Techincal Specification:

CRITICALITY CODE JUSTIFICATION	FEAT
FASTENER LENGTH	1.250 INCHES NOMINAL
HARDNESS RATING	33.0 ROCKWELL C MINIMUM FASTENER AND 39.0 ROCKWELL C MAXIMUM FASTENER
HEAD HEIGHT	0.302 INCHES MINIMUM AND 0.364 INCHES MAXIMUM
HEAD STYLE	HEXAGON
LOCKING FEATURE	PATCH THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	SAE J429,GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE FASTENER OR ASTM A354,GRADE BD ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL	PLASTIC POLYAMIDE LOCKING FEATURE
MATERIAL	STEEL FASTENER
PROPRIETARY CHARACTERISTICS	PACS
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	130000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.500 INCHES
SPECIAL FEATURES	WEAPON SYSTEM ESSENTIAL
WIDTH BETWEEN FLATS	0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	CADMIUM FASTENER AND CHROMATE FASTENER
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.150 INCHES MINIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNF

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