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: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 5905-01-243-9170
NSN 5990-01-238-1975
NSN 6150-01-646-6412
NSN 6620-00-896-8188
NSN 5975-01-341-0629
NSN 5945-01-651-6152
NSN 5935-00-187-5971
NSN 5910-01-256-0821
NSN 5920-00-823-6088
NSN 6620-00-601-3885
NSN 5999-00-681-8605
NSN 6110-01-516-4950