5305-00-557-8564, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-557-8564

Federal Supply Class:
5305

National Item Identification Number:
005578564

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:

720203-1	05869	RAYTHEON COMPANY
APR386	18915	PEP WEST, INC. DBA PENTAIR TECHNICAL PRODUCTS USE CAGE CODE 61081 FOR CATALOGING DIV PENTAIR TECHNICAL PRODUCTS
APR386	61081	SCHROFF INC
APR386	62372	PRECISE OF CALIFORNIA DIV OF ADJUSTABLE BUSHING CORP

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.439 INCHES MINIMUM AND 0.459 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.604 INCHES MINIMUM AND 0.614 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.090 INCHES MINIMUM AND 0.093 INCHES MAXIMUM
HEAD DIAMETER	0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
HEAD HEIGHT	0.099 INCHES MINIMUM AND 0.119 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 1
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.138 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.155 INCHES MINIMUM AND 0.165 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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