5306-00-953-2379, BOLT,EXTERNALLY RELIEVED BODY

5306-00-953-2378 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-953-2379

Federal Supply Class:
5306

National Item Identification Number:
009532379

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:

205364P20

77445

RTX CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.820 INCHES MINIMUM AND 0.840 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	0.890 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.650 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SIXTH DIAMETER	1.560 INCHES MINIMUM AND 1.580 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SEVENTH DIAMETER	1.730 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER	1.510 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FASTENER LENGTH	2.425 INCHES MINIMUM AND 2.435 INCHES MAXIMUM
FIFTH DIAMETER FROM HEAD	0.358 INCHES MINIMUM AND 0.368 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.358 INCHES MINIMUM AND 0.368 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.434 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
HARDNESS RATING	34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
HEAD HEIGHT	0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.4375 INCHES
SECOND DIAMETER FROM HEAD	0.4635 INCHES MINIMUM AND 0.4675 INCHES MAXIMUM
SEVENTH DIAMETER FROM HEAD	0.358 INCHES MINIMUM AND 0.368 INCHES MAXIMUM
SIXTH DIAMETER FROM HEAD	0.434 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.358 INCHES MINIMUM AND 0.368 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.690 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	20

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