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 5990-00-140-1159
NSN 5945-01-005-0328
NSN 6240-01-413-8028
NSN 6130-00-338-7473
NSN 5999-01-598-8960
NSN 5925-01-189-9254
NSN 6685-01-629-7365
NSN 6240-00-982-6748
NSN 6220-01-588-7104
NSN 6620-01-391-6499
NSN 5910-00-203-5373
NSN 5920-00-878-2753