A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
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Austria 
Finland 
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Romania 
Slovakia 
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Czech Republic 
Brazil 
Spain 
Columbia 
Israel 
Argentina 
Singapore 
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Morocco 
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Malaysia 
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France 
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NATO Maintenance and Supply Agency Classification: Washers other than lock washers, iron or steel
NSN 6130-01-352-6112
NSN 5996-01-091-9337
NSN 6240-01-034-9457
NSN 6105-01-334-0698
NSN 6320-01-583-6809
NSN 5965-00-281-0319
NSN 5835-00-841-2650
NSN 5920-01-444-1700
NSN 6105-00-571-6866
NSN 5990-01-485-0260
NSN 6240-00-881-9624
NSN 4140-01-204-6716