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 6135-01-334-3935
NSN 5855-01-469-8099
NSN 5999-01-458-7882
NSN 4140-00-888-4160
NSN 6135-01-151-2705
NSN 6105-00-807-8986
NSN 6130-01-660-8469
NSN 5915-00-827-7409
NSN 5985-00-889-3893
NSN 2925-01-400-2286
NSN 5999-00-583-0067
NSN 6110-00-469-7981