5306-00-415-5428, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-415-5428

Federal Supply Class:
5306

National Item Identification Number:
004155428

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:

9107-1

14541

COOPER MACHINERY SERVICES LLC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	1.250 INCHES
THREAD QUANTITY PER INCH	12
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	2.375 INCHES MINIMUM
FASTENER LENGTH	17.000 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	25.0 ROCKWELL C MINIMUM AND
	30.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	DEE CHAMFER
HEAD DIAMETER	2.000 INCHES NOMINAL
HEAD HEIGHT	1.250 INCHES NOMINAL
DISTANCE FROM CENTERLINE TO FLAT	0.797 INCHES MINIMUM AND
	0.807 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	16.188 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.219 INCHES NOMINAL FIRST HOLE
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	7
FIRST DIAMETER FROM HEAD	1.140 INCHES MINIMUM AND
	1.150 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD	1.247 INCHES MINIMUM AND
	1.248 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	1.140 INCHES MINIMUM AND
	1.150 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	1.247 INCHES MINIMUM AND
	1.248 INCHES MAXIMUM
FIFTH DIAMETER FROM HEAD	1.140 INCHES MINIMUM AND
	1.150 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.500 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.000 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	4.500 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	6.500 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER	11.000 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SEVENTH DIAMETER	14.250 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SIXTH DIAMETER	14.000 INCHES NOMINAL
SEVENTH DIAMETER FROM HEAD	1.140 INCHES MINIMUM AND
	1.150 INCHES MAXIMUM
SIXTH DIAMETER FROM HEAD	1.247 INCHES MINIMUM AND
	1.248 INCHES MAXIMUM
SPECIAL FEATURES	POINT 0.750 IN. NOMINAL DIA 0.375 IN. NOMINAL LG
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT

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