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 5999-01-342-4979
NSN 6135-01-371-9209
NSN 4140-00-751-1694
NSN 6240-01-163-2813
NSN 5960-01-144-0354
NSN 5835-01-618-1225
NSN 6645-01-452-3354
NSN 6610-01-444-2050
NSN 6320-01-393-7022
NSN 6130-00-862-8737
NSN 5920-01-317-3506
NSN 4140-01-065-1884