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 5920-01-382-9379
NSN 4140-01-185-6214
NSN 5895-01-473-6691
NSN 6135-01-660-8237
NSN 6135-00-027-3914
NSN 6220-00-176-0273
NSN 5915-00-872-9078
NSN 5945-00-470-5080
NSN 5905-01-384-2789
NSN 6240-01-240-7529
NSN 5905-01-165-6611
NSN 5915-01-486-2076