5306-00-737-8827, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-737-8827

Federal Supply Class:
5306

National Item Identification Number:
007378827

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:

1455112	24617	GENERAL MOTORS CORP
1455112	7X677	GENERAL MOTORS LLC
7378827	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	1.625 INCHES MINIMUM AND 1.688 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.218 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	1.078 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.093 INCHES NOMINAL
FASTENER LENGTH	2.182 INCHES MINIMUM AND 2.265 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.360 INCHES NOMINAL
FOURTH DIAMETER FROM HEAD	0.345 INCHES MINIMUM AND 0.348 INCHES MAXIMUM
HARDNESS RATING
HEAD HEIGHT	0.216 INCHES NOMINAL
HEAD LENGTH	0.598 INCHES NOMINAL
MATERIAL
NOMINAL THREAD DIAMETER	0.625 INCHES
SECOND DIAMETER FROM HEAD	0.390 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.382 INCHES MINIMUM AND 0.383 INCHES MAXIMUM
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.557 INCHES MINIMUM AND 0.577 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNEF
WIDTH BETWEEN FLATS	0.428 INCHES MINIMUM AND 0.443 INCHES MAXIMUM

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