5305-01-260-4923, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-260-4923

Federal Supply Class:
5305

National Item Identification Number:
012604923

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:

4152-M07-F09	04729	UNICORP.
6152-SS-2520	06540	NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
6152-SS-2520	1YGB8	CAREY MANUFACTURING CO, INC
6152-SS-2520-7	06540	NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
6152-SS-2520-7	1YGB8	CAREY MANUFACTURING CO, INC
GC553P4C14	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
GS553L4CC19B	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	1.172 INCHES MINIMUM AND 1.202 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
HEAD DIAMETER	0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM
HEAD HEIGHT	0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 1
INTERNAL DRIVE STYLE	SLOT
MATERIAL	STEEL COMP 303 OR STEEL COMP 303SE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
POINT STYLE	CONE
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	0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNC

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