5305-00-419-4586, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-419-4586

Federal Supply Class:
5305

National Item Identification Number:
004194586

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:

135163-3

05257

GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.112 INCHES
THREAD QUANTITY PER INCH	40
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.399 INCHES MINIMUM AND
	0.450 INCHES MAXIMUM
FASTENER LENGTH	0.719 INCHES MINIMUM AND
	0.750 INCHES MAXIMUM
MATERIAL	STEEL CORROSION RESISTING OR
	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763,300 SERIES FED SPEC 1ST MATERIAL RESPONSE OR
	66,300 SERIES FED STD 1ST MATERIAL RESPONSE OR
	COMP 16-18 OR 18-8 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	951034 FSCM 05257 MFR REF SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
HEAD STYLE	PAN
HEAD DIAMETER	0.205 INCHES MINIMUM AND
	0.219 INCHES MAXIMUM
HEAD HEIGHT	0.070 INCHES MINIMUM AND
	0.080 INCHES MAXIMUM
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FIRST DIAMETER FROM HEAD	0.075 INCHES MINIMUM AND
	0.085 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.300 INCHES MINIMUM AND
	0.320 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE	05257
DESIGN CONTROL REFERENCE	135163-3

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