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 4140-00-108-5688
NSN 5998-01-592-8340
NSN 6105-01-487-5072
NSN 6150-00-286-0827
NSN 2925-01-266-5229
NSN 5855-00-532-0025
NSN 5960-01-146-0289
NSN 5910-01-270-2013
NSN 5985-00-905-7924
NSN 6105-01-262-8459
NSN 6130-01-425-9870
NSN 5960-01-183-8213