5306-00-427-7024, BOLT,EXTERNALLY RELIEVED BODY

5306-00-427-7027 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-427-7024

Federal Supply Class:
5306

National Item Identification Number:
004277024

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:

570550-47	3B150	RAYTHEON COMPANY
570550-47	49956	RAYTHEON COMPANY
SD300-106856-3-47	0EXY1	SPS TECHNOLOGES INC
SD300-106856-3-47	50394	SPS TECHNOLOGIES INC UNBRAKO DIV
SD300-106856-3-47	56873	NUDAY CO THE
SD300-106856-3-47	56878	SPS TECHNOLOGIES, LLC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.049 INCHES MINIMUM AND 1.096 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.040 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	1.359 INCHES MINIMUM AND 1.406 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.031 INCHES MINIMUM AND 0.041 INCHES MAXIMUM
HARDNESS RATING	51.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.214 INCHES NOMINAL
HEAD STYLE	DOUBLE HEXAGON W/HOLE
MATERIAL	STEEL COMP H11 OR STEEL COMP 4340 OVERALL
MINIMUM TENSILE STRENGTH	260000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-8837,TYPE 1,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.310 INCHES NOMINAL
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
WIDTH BETWEEN FLATS	0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM

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