5306-01-127-8479, BOLT,EXTERNALLY RELIEVED BODY

5306-01-127-8480 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-127-8479

Federal Supply Class:
5306

National Item Identification Number:
011278479

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:

10115786	A486G	NIMIKKEISTOKESKUS NCB FINLAND
3032T53P02	99207	GENERAL ELECTRIC COMPANY

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.730 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	1.310 INCHES MINIMUM AND 1.320 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
HEAD HEIGHT	0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
NOMINAL THREAD DIAMETER	0.250 INCHES
PRECIOUS MATERIAL	SILVER
PRECIOUS MATERIAL AND LOCATION	THREADS SILVER
WIDTH BETWEEN FLATS	0.312 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENT	SILVER THREADS
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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