5306-01-323-1139, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-323-1139

Federal Supply Class:
5306

National Item Identification Number:
013231139

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:

75A170113-2003

76301

THE BOEING COMPANY

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.240 INCHES NOMINAL FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.101 INCHES MINIMUM AND 0.116 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	1.065 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.181 INCHES MINIMUM AND 0.191 INCHES MAXIMUM
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.750 INCHES NOMINAL
HEAD HEIGHT	0.120 INCHES NOMINAL
HEAD STYLE	FLAT CHAMFER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6411 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL UNS K23080 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
POINT STYLE	FLAT
SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.120 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	28

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