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 6110-01-319-4070
NSN 4140-01-457-5539
NSN 6650-01-440-1827
NSN 5920-00-722-3365
NSN 5965-00-706-7005
NSN 6620-01-183-8959
NSN 6135-01-285-8807
NSN 6110-00-834-1422
NSN 5855-01-576-4223
NSN 5930-01-656-9819
NSN 5920-01-291-0397
NSN 5965-01-562-5830