5306-00-399-5625, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-399-5625

Federal Supply Class:
5306

National Item Identification Number:
003995625

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:

32ADHAC	7PZX0	FAIRBANKS MORSE, LLC
32ADHAC	82796	COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE

Techincal Specification:

DISTANCE FROM CENTERLINE TO FLAT	0.531 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	4.006 INCHES NOMINAL FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	3.812 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.562 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	2.562 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.375 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FASTENER LENGTH	5.250 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.620 INCHES MINIMUM AND 0.623 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.528 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
HARDNESS RATING	27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	1.250 INCHES NOMINAL
HEAD HEIGHT	0.375 INCHES NOMINAL
HEAD STYLE	DEE CHAMFER
MATERIAL DOCUMENT AND CLASSIFICATION	4F-11A1,FSCM 82796 MFR REF 3RD MATERIAL RESPONSE OR 4952 ALLOY 2,FSCM 82796 MFR REF 3RD MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL OVERALL
MINIMUM TENSILE STRENGTH	120000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.625 INCHES
SECOND DIAMETER FROM HEAD	0.528 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER	0.128 INCHES NOMINAL FIRST HOLE
THIRD DIAMETER FROM HEAD	0.622 INCHES MINIMUM AND 0.623 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.937 INCHES NOMINAL
THREAD QUANTITY PER INCH	18
THREAD SERIES DESIGNATOR	UNF

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