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 6105-01-431-8289
NSN 5998-01-375-7380
NSN 5930-01-086-1786
NSN 5965-00-225-1848
NSN 6620-00-956-2605
NSN 4140-00-828-4181
NSN 5920-01-105-8996
NSN 5915-00-383-1471
NSN 6130-01-293-4650
NSN 6645-00-596-5388
NSN 6130-01-179-2737
NSN 6645-01-360-9689