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 5990-01-299-2014
NSN 6620-00-546-6071
NSN 6685-01-064-0022
NSN 6150-00-616-7717
NSN 6650-01-462-5879
NSN 5999-00-531-4303
NSN 6150-00-078-7064
NSN 5945-01-375-3463
NSN 5855-01-359-5727
NSN 5895-01-202-6484
NSN 5855-01-565-3266
NSN 5905-01-023-7575