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 5855-01-325-9507
NSN 5996-01-156-7498
NSN 5990-01-203-4075
NSN 5975-00-028-0122
NSN 5965-01-512-4065
NSN 5990-01-185-5346
NSN 6130-00-292-5058
NSN 5996-00-715-5615
NSN 5930-00-825-9530
NSN 5975-01-005-9489
NSN 5975-00-519-4516
NSN 6145-01-641-2952