5306-01-074-3666, BOLT,EXTERNALLY RELIEVED BODY

5306-01-074-3665 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-074-3666

Federal Supply Class:
5306

National Item Identification Number:
010743666

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:

12286475	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12302069	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
3-140-043X07	99193	HONEYWELL INTERNATIONAL INC.

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	3.940 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	4.310 INCHES MINIMUM AND 4.330 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HARDNESS RATING	34.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.230 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
HEAD STYLE	HEXAGON
HOLE CONFIGURATION STYLE	HEXAGON FLATS
HOLE DIAMETER	0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM
HOLE QUANTITY	1
HOLE TYPE	DRILLED
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5708 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	NICKEL ALLOY OVERALL
MINIMUM TENSILE STRENGTH	5400 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SECOND DIAMETER FROM HEAD	0.205 INCHES MINIMUM AND 0.210 INCHES MAXIMUM
SPECIAL FEATURES	NO.2 COMBINATION CENTER DRILL,CSK58-62 DEGREES TO 0.150-0.170 INCHES,OPTIONAL,BOTH ENDS
WIDTH BETWEEN FLATS	0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNJF

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