Model: 393
Lock Washer0.319 inches hole diameter, 0.575 inches outside diameter, 0.056 inches material thickness, 45.0 rockwell c hardness rating, steel material.
Properties:
A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces
Part 393 NSN 5310-00-012-0379
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsFreight Classification
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Schedule B and Export
- Schedule B: 7318210000
- SITC: 69422
- End Use: Finished metal shapes
- NAICS: 332722
- USDA: 1
Freight Class: Spring washers and other lock washers, iron or steel
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