5306-00-187-9884, BOLT,EXTERNALLY RELIEVED BODY

5995-00-187-9880 CABLE ASSEMBLY,RADIO FREQUENCY

National Stock Number:
5306-00-187-9884

Federal Supply Class:
5306

National Item Identification Number:
001879884

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:

2M9179	11083	CATERPILLAR INC
2M9179-00	58312	MIL-TECH MFG INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	4.250 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	2.900 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	3.166 INCHES MINIMUM AND 3.170 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	5.500 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.500 INCHES NOMINAL
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.500 INCHES
SECOND DIAMETER FROM HEAD	0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.500 INCHES NOMINAL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.050 INCHES MINIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	20
WIDTH BETWEEN FLATS	0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM

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