5306-01-366-2777, BOLT,MACHINE

5305-01-366-2778 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-366-2777

Federal Supply Class:
5306

National Item Identification Number:
013662777

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:

23007593-1418

63005

ROLLS-ROYCE CORPORATION

Techincal Specification:

EXTENDED WASHER DIAMETER	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
FASTENER LENGTH	1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
GRIP LENGTH	0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
HEAD HEIGHT	0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	NICKEL ALLOY 718 OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES THREADS
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.440 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
WIDTH BETWEEN FLATS	0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM

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