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 5950-01-649-6323
NSN 5990-01-339-9238
NSN 6240-01-641-2666
NSN 6220-00-079-4840
NSN 5996-00-993-0841
NSN 6650-01-235-0981
NSN 5998-01-195-3719
NSN 5998-01-023-8542
NSN 5990-01-481-0164
NSN 6240-01-646-0860
NSN 6130-01-519-9337
NSN 5925-01-487-2292