5305-00-638-5174, SCREW,EXTERNALLY RELIEVED BODY

5305-00-638-5165 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-638-5174

Federal Supply Class:
5305

National Item Identification Number:
006385174

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:

447B1	56442	DIAMOND REO TRUCK CO
5939783	23862	MILITARY VEHICLES OPN GENERAL MOTORS TRUCK AND BUS GROUP MS 2603-02
7525935	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
5939783	24617	GENERAL MOTORS CORP
5939783	73331	GENERAL MOTORS CORP FISHER GUIDE DIV
5939783	7X677	GENERAL MOTORS LLC
7539541	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
KC8777	56442	DIAMOND REO TRUCK CO
955638	58275	SASCO INC CANADIAN DIV

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.438 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.138 INCHES MINIMUM AND 0.148 INCHES MAXIMUM
HEAD HEIGHT	0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
HEAD DIAMETER	0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
HEAD STYLE	PAN NO. 2
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 302 OR STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.190 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	GM-4405-P FSCM 19207 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.266 INCHES MINIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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