5305-00-903-2254, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-903-2254

Federal Supply Class:
5305

National Item Identification Number:
009032254

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:

720-03222-01	04773	GTE COMMUNICATION SYSTEMS CORP
720-03222-01	26055	PARKER-HANNIFIN CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.250 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.102 INCHES NOMINAL
HEAD DIAMETER	0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT	0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM
HEAD STYLE	PAN
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL	STEEL COMP 202 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 322 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 403 OR STEEL COMP 405 OR STEEL COMP 410 OR STEEL COMP 414 OR STEEL COMP 416 OR STEEL COMP 416SE OR STEEL COMP 420 OR STEEL COMP 429 OR STEEL COMP 430 OR STEEL COMP 430F OR STEEL COMP 430FSE OR STEEL COMP 431 OR STEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OR STEEL COMP 440F OR STEEL COMP 446 OVERALL
MINIMUM TENSILE STRENGTH	70000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.138 INCHES
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.250 INCHES MINIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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