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National Stock Number:
5305-00-446-9424
Federal Supply Class:
5305
National Item Identification Number:
004469424
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.
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Manufacturer Information:
| 135163-4 | 05257 | GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | FASTENER LENGTH | 1.594 INCHES MINIMUM AND 1.625 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM | | NOMINAL THREAD DIAMETER | 0.112 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 951034,FSCM 05257 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.834 INCHES MINIMUM AND 0.885 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 40 |
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