5305-01-232-0423, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-232-0423

Federal Supply Class:
5305

National Item Identification Number:
012320423

Description:
SCREW,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 undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

2797768-1	55972	HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS
2797768-1	K0662	LEONARDO MW LTD
2797768-1	U6682	LEONARDO UK LTD

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER	0.325 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.025 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SIXTH DIAMETER	0.373 INCHES MINIMUM AND 0.403 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.150 INCHES MINIMUM AND 0.152 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	0.175 INCHES MINIMUM AND 0.177 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	5
FASTENER LENGTH	0.500 INCHES NOMINAL
FIFTH DIAMETER FROM HEAD	0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.160 INCHES NOMINAL
FOURTH DIAMETER FROM HEAD	0.1241 INCHES MINIMUM AND 0.1246 INCHES MAXIMUM
HEAD HEIGHT	0.100 INCHES NOMINAL
HEAD STYLE	HEXAGON
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
SECOND DIAMETER FROM HEAD	0.1856 INCHES MINIMUM AND 0.1861 INCHES MAXIMUM
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.100 INCHES NOMINAL
THREAD LENGTH	0.097 INCHES MINIMUM AND 0.127 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS	0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM

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