5305-01-236-6990, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-236-6990

Federal Supply Class:
5305

National Item Identification Number:
012366990

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:

112-1118-025	94756	THE BOEING COMPANY
820-SS-20	55566	MATTHEW WARREN, INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM
HEAD DIAMETER	0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM
HEAD HEIGHT	0.069 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
HEAD STYLE	FILLISTER
INTERNAL DRIVE STYLE	SLOT
MATERIAL	STEEL COMP 203EZ OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 303SE OR STEEL COMP 416 OR STEEL COMP 416 PLUS X OR STEEL COMP 416SE OR STEEL COMP 430F OR STEEL COMP 430FSE OR STEEL COMP 420F OR STEEL COMP 420FSE OR STEEL COMP 440F OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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