5306-01-139-4721, BOLT,EXTERNALLY RELIEVED BODY

1730-01-139-4717 SLING,AIRCRAFT MAINTENANCE

6115-01-139-4722 END BELL,ELECTRICAL ROTATING EQU

National Stock Number:
5306-01-139-4721

Federal Supply Class:
5306

National Item Identification Number:
011394721

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:

3031T95P04	99207	GENERAL ELECTRIC COMPANY
5306PL1498095	9009H	INSPEKTORAT WSPARCIA SIL ZBROJNYCH

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.558 INCHES MINIMUM AND 0.578 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.060 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.870 INCHES MINIMUM AND 0.890 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
HEAD HEIGHT	0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
PRECIOUS MATERIAL AND LOCATION	THREADS SILVER
WIDTH BETWEEN FLATS	0.312 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENT	SILVER THREADS
THREAD CLASS	3A
THREAD LENGTH	0.312 INCHES NOMINAL
THREAD DIRECTION	RIGHT-HAND
THREAD SERIES DESIGNATOR	UNJF
THREAD QUANTITY PER INCH	28

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