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 5915-01-147-3023
NSN 4140-01-372-6078
NSN 6650-01-484-9505
NSN 6320-01-420-0340
NSN 5965-00-223-1641
NSN 6135-01-313-4865
NSN 5835-01-176-5422
NSN 5905-01-344-0119
NSN 5996-01-257-2517
NSN 6145-01-444-1668
NSN 5960-01-197-2759
NSN 5998-01-056-4956