5306-01-076-4756, BOLT,EXTERNALLY RELIEVED BODY

5305-01-076-4765 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-076-4756

Federal Supply Class:
5306

National Item Identification Number:
010764756

Description:
BOLT,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Manufacturer Information:

160014-1

55820

RTX CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	0.795 INCHES MINIMUM AND 0.805 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.613 INCHES MINIMUM AND 0.619 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER	0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.707 INCHES MINIMUM AND 0.713 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	5
FASTENER LENGTH	1.390 INCHES MINIMUM AND 1.450 INCHES MAXIMUM
FIFTH DIAMETER FROM HEAD	0.362 INCHES MINIMUM AND 0.367 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.325 INCHES MINIMUM AND 0.327 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.432 INCHES MINIMUM AND 0.436 INCHES MAXIMUM
HEAD HEIGHT	0.160 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
HEAD STYLE	HEXAGON
HOLE CONFIGURATION STYLE	HEXAGON FLATS
HOLE DIAMETER	0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM
HOLE QUANTITY	6
HOLE TYPE	DRILLED
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 302 OR STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.437 INCHES
SECOND DIAMETER FROM HEAD	0.432 INCHES MINIMUM AND 0.436 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.684 INCHES MINIMUM AND 0.692 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.325 INCHES MINIMUM AND 0.327 INCHES MAXIMUM
THREAD LENGTH	0.437 INCHES NOMINAL
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNF

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