5306-00-522-3990, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-522-3990

Federal Supply Class:
5306

National Item Identification Number:
005223990

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:

5223990

19204

ARMY, UNITED STATES DEPARTMENT OF THE

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.375 INCHES
THREAD QUANTITY PER INCH	24
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.500 INCHES MAXIMUM
FASTENER LENGTH	1.188 INCHES NOMINAL
MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-11415,CL C2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
MINIMUM YIELD STRENGTH	60000 POUNDS PER SQUARE INCH
HEAD STYLE	HEXAGON
HEAD HEIGHT	0.188 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.687 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.062 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.078 INCHES NOMINAL FIRST HOLE
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FIRST DIAMETER FROM HEAD	0.375 INCHES NOMINAL
SECOND DIAMETER FROM HEAD	0.310 INCHES MINIMUM AND
	0.311 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.687 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.188 INCHES NOMINAL
THE MANUFACTURERS DATA
MANUFACTURERS CODE	19204
DESIGN CONTROL REFERENCE	5223990

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