5306-01-144-6065, BOLT,MACHINE

National Stock Number:
5306-01-144-6065

Federal Supply Class:
5306

National Item Identification Number:
011446065

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:

65261-08019-101

78286

SIKORSKY AIRCRAFT CORPORATION

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	4.870 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	5.140 INCHES NOMINAL
HEAD HEIGHT	0.625 INCHES NOMINAL
HEAD STYLE	HEXAGON
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	1.250 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM ALL HOLES
SPECIAL FEATURES	DRILLED HOLE IN SHANK END 0.750 DIA.,0.780 LONG. SHANK SURFACE TREATMENT SULFAMATE NICKEL PER SS8414 TYZ CL1
WIDTH BETWEEN FLATS	1.801 INCHES MINIMUM AND 1.815 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-STD-865 MIL SPEC SINGLE TREATMENT RESPONSE HEADMIL-STD-865 MIL SPEC SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENT	CADMIUM HEADCADMIUM THREADS
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.050 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNJF
THREAD QUANTITY PER INCH	12

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