5306-01-281-4327, BOLT,MACHINE

National Stock Number:
5306-01-281-4327

Federal Supply Class:
5306

National Item Identification Number:
012814327

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:

MS21095-1001	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS21095-1001	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	0.360 INCHES MINIMUM AND 0.406 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
GRIP LENGTH	0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM FASTENER
HEAD HEIGHT	0.094 INCHES MINIMUM AND 0.106 INCHES MAXIMUM
HEAD STYLE	HEXAGON
LOCKING FEATURE	PATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE FASTENER
MATERIAL	PLASTIC POLYAMIDE (NYLON) LOCKING FEATURE
MATERIAL	STEEL COMP 431 FASTENER
MATERIAL	STEEL CORROSION RESISTING OVERALL
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.138 INCHES
SPECIAL FEATURES	LOCKING FEATURE IS PLASTIC POLYAMIDE
WIDTH BETWEEN FLATS	0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM
SURFACE TREATMENT	PASSIVATE FASTENER
THREAD CLASS	3A
THREAD LENGTH	0.288 INCHES MINIMUM AND 0.354 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	32

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