5305-01-291-0138, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-291-0138

Federal Supply Class:
5305

National Item Identification Number:
012910138

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:

10119091-123	94580	HONEYWELL INTERNATIONAL INC.
501C33-13	94033	CARDWELL CONDENSER CORP LAPOINTE-ADMIRAL DIV
6108-SS-2520	06540	NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
6108-SS-2520-7	06540	NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
6108-SS-2520-7	1YGB8	CAREY MANUFACTURING CO, INC
6108-SS-2520	1YGB8	CAREY MANUFACTURING CO, INC
70-1330065-41	11293	GTE GOVERNMENT SYSTEMS CORP STRATEGIC SYSTEMS DIV

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.364 INCHES MINIMUM AND 0.384 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
HEAD DIAMETER	0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
HEAD HEIGHT	0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 1
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-W-52263 MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 203EZ OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303CU 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 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
POINT STYLE	CONE
POINT CHAMFER ANGLE	85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
POINT DIAMETER	0.159 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
POINT LENGTH	0.188 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD LENGTH	0.313 INCHES NOMINAL
THREAD DIRECTION	RIGHT-HAND
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNC

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