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National Stock Number:
5305-01-317-0420
Federal Supply Class:
5305
National Item Identification Number:
013170420
Description:
THUMBSCREW
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).
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Manufacturer Information:
| CL-18-SHS-N | 99862 | CARR LANE MANUFACTURING CO | | ES8379-18S | 20418 | DRS SUSTAINMENT SYSTEMS, INC. USE CAGE CODE 98255 FOR CATALOGING |
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Techincal Specification:
| FASTENER LENGTH | 1.315 INCHES NOMINAL | | HEAD DIAMETER | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | 12L14 CAGEC 20418 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT DIAMETER | 0.375 INCHES NOMINAL | | POINT LENGTH | 0.125 INCHES NOMINAL | | POINT SWIVEL INCLUDED ANGLE | 40.0 DEGREES NOMINAL | | POINT STYLE | UNIVERSAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 TY 2,CL FE/ZN ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SPECIAL FEATURES | STEEL12L14 FOOT,OR NYLON FOOT | | SURFACE TREATMENT | ZINC AND CHROMATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.078 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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