5306-00-705-9685, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-705-9685

Federal Supply Class:
5306

National Item Identification Number:
007059685

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:

7059685	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
GAA6214B	23040	FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES
GAA6214B	57526	FORD MOTOR COMPANY

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.770 INCHES MINIMUM AND 2.780 INCHES MAXIMUM FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.240 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	2.220 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.980 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	1.680 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FASTENER LENGTH	2.940 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.525 INCHES MINIMUM AND 0.526 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.425 INCHES MINIMUM AND 0.430 INCHES MAXIMUM
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 8640 OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES
SECOND DIAMETER FROM HEAD	0.425 INCHES MINIMUM AND 0.530 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER	0.140 INCHES NOMINAL FIRST HOLE
SPECIAL FEATURES	HOLE DRILLED PERPENDICULAR TO AND THROUGH COTTER PIN HOLE
SURFACE TREATMENT	PHOSPHATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.510 INCHES MINIMUM AND 0.511 INCHES MAXIMUM
THREAD LENGTH	0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNF

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