5306-00-652-6346, BOLT,EXTERNALLY RELIEVED BODY

5306-00-652-6347 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-652-6346

Federal Supply Class:
5306

National Item Identification Number:
006526346

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:

8759261

19207

U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.840 INCHES MINIMUM AND 0.845 INCHES MAXIMUM
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	1.750 INCHES NOMINAL
CRITICALITY CODE JUSTIFICATION	AAWC
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	1.750 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.6185 INCHES MINIMUM AND 0.6235 INCHES MAXIMUM
HARDNESS RATING	29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.328 INCHES NOMINAL
HEAD STYLE	HEXAGON
MATERIAL	STEEL COMP 1010 OR STEEL COMP 1015 OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES
SECOND DIAMETER FROM HEAD	0.500 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.750 INCHES NOMINAL
SURFACE TREATMENT	PHOSPHATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.375 INCHES NOMINAL
THREAD LENGTH	0.717 INCHES MINIMUM AND 0.722 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNF

Click here to Register for Free 30-day Trial