5306-01-117-7764, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-117-7764

Federal Supply Class:
5306

National Item Identification Number:
011177764

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:

2600623

80064

NAVAL SHIP SYSTEMS COMMAND

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.112 INCHES MINIMUM AND
	1.225 INCHES MAXIMUM
FASTENER LENGTH	1.212 INCHES MINIMUM AND
	1.225 INCHES MAXIMUM
MATERIAL	STEEL COMP 304 OR
	STEEL COMP 310 OR
	STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35,TYPE 1,2,3 OR 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE	SQUARE
HEAD HEIGHT	0.150 INCHES MINIMUM AND
	0.163 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.250 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.062 INCHES MINIMUM AND
	1.075 INCHES MAXIMUM FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.062 INCHES MINIMUM AND
	0.065 INCHES MAXIMUM FIRST HOLE
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FIRST DIAMETER FROM HEAD	0.168 INCHES MINIMUM AND
	0.178 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.150 INCHES NOMINAL

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