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 4140-00-242-6465
NSN 5999-01-083-8623
NSN 5905-01-344-0119
NSN 6110-01-513-2179
NSN 2925-00-925-0545
NSN 5895-01-472-3672
NSN 5985-00-456-0240
NSN 5960-00-137-4751
NSN 5960-01-593-4760
NSN 6130-01-459-8018
NSN 5965-00-905-6895
NSN 5920-01-088-8312