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 6620-01-643-5531
NSN 5835-00-174-7763
NSN 5998-01-175-2340
NSN 6145-01-246-3988
NSN 5998-01-308-8014
NSN 6220-01-592-6113
NSN 6645-00-559-3623
NSN 5915-01-489-6185
NSN 5920-00-187-0260
NSN 6110-00-105-9850
NSN 5998-01-557-5375
NSN 6145-01-332-3416