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 4140-01-350-3277
NSN 5945-01-108-1490
NSN 6620-01-287-8073
NSN 6240-00-451-8587
NSN 7035-00-703-3535
NSN 5998-01-477-0468
NSN 5998-01-459-7129
NSN 4140-00-843-7262
NSN 6645-01-055-5465
NSN 5925-01-652-9617
NSN 5905-01-519-1081
NSN 6110-01-461-1058