5305-00-620-3761, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-620-3761

Federal Supply Class:
5305

National Item Identification Number:
006203761

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:

8585512

19200

US ARMY ARDEC RDECOM

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.531 INCHES NOMINAL
FASTENER LENGTH	1.281 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	OXIDE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-P-12011 GR 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE	PAN NO. 2
HEAD DIAMETER	0.625 INCHES NOMINAL
HEAD HEIGHT	0.141 INCHES NOMINAL
INTERNAL DRIVE STYLE	SLOT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FIRST DIAMETER FROM HEAD	0.359 INCHES NOMINAL
SECOND DIAMETER FROM HEAD	0.438 INCHES NOMINAL
THIRD DIAMETER FROM HEAD	0.156 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.062 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.250 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.282 INCHES NOMINAL
SPECIAL FEATURES	SECOND RELIEVED THREADED 7/16-20 UNF 2A
THE MANUFACTURERS DATA
MANUFACTURERS CODE	19200
DESIGN CONTROL REFERENCE	8585512

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