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.
Classification: Copper washers including spring washers not threaded
NSN 5999-01-074-4628
NSN 6135-01-303-0295
NSN 5930-00-695-1236
NSN 6150-01-296-4906
NSN 5965-01-647-2697
NSN 5999-00-435-8497
NSN 6145-01-576-9609
NSN 5999-00-401-7729
NSN 5965-01-633-8849
NSN 6135-00-866-2311
NSN 5920-01-305-8120
NSN 5855-01-278-8922