5306-01-218-8278, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-218-8278

Federal Supply Class:
5306

National Item Identification Number:
012188278

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:

9502M44P01

07482

GENERAL ELECTRIC COMPANY

Techincal Specification:

DISTANCE FROM CENTERLINE TO FLAT	0.234 INCHES MINIMUM AND 0.240 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.140 INCHES MINIMUM AND 1.200 INCHES MAXIMUM
ASKEWED HEAD ANGLE	90.0 DEGREES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.222 INCHES MINIMUM AND 0.232 INCHES MAXIMUM
HEAD HEIGHT	0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
HEAD STYLE	DEE CHAMFER
MATERIAL	NICKEL ALLOY 718 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SPECIAL FEATURES	HEAD CHAMFERED 45 DEGREE ANGLE WITH MIN. 0.060 BY MAX. 0.070 IN.
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.540 INCHES MINIMUM AND 0.620 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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