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 5915-01-182-8133
NSN 5975-01-386-3061
NSN 5965-01-452-4189
NSN 5935-01-208-1247
NSN 6650-01-045-5494
NSN 5965-01-028-6206
NSN 5990-01-423-8189
NSN 5930-00-350-2241
NSN 6650-01-580-9749
NSN 5925-01-091-7220
NSN 6110-01-400-4207
NSN 6620-01-546-4942