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 6620-01-367-2597
NSN 5945-01-536-0072
NSN 6240-00-123-7648
NSN 5935-00-181-0418
NSN 5925-00-584-7189
NSN 5975-01-461-8549
NSN 6135-01-045-1504
NSN 5990-01-045-2129
NSN 5930-01-490-2537
NSN 4140-01-083-1919
NSN 5985-00-205-2922
NSN 5855-01-495-2670