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National Stock Number:
5305-01-535-0031
Federal Supply Class:
5305
National Item Identification Number:
015350031
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:
| 13010011 | 05791 | LYN-TRON, INC. | | 13010011 | 19200 | US ARMY ARDEC RDECOM | | SS3378-01 | 05791 | LYN-TRON, INC. | | 378SS20 | 55566 | MATTHEW WARREN, INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.209 INCHES | | THREAD QUANTITY PER INCH | 40 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.125 INCHES NOMINAL | | FASTENER LENGTH | 0.375 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | COLOR | NATURAL OVERALL | | HEAD STYLE | KNURLED NO. 5 | | HEAD DIAMETER | 0.313 INCHES NOMINAL | | HEAD HEIGHT | 0.313 INCHES NOMINAL | | INTERNAL DRIVE STYLE | SLOT | | POINT STYLE | CONE | | POINT CHAMFER ANGLE | 90.0 DEGREES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | SPECIAL FEATURES | NON MAGNETIC | | PART NAME ASSIGNED BY CONTROLLING AGENCY | CAPTIVE PANEL SCREW TYPE 2 |
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