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 4140-01-227-4674
NSN 6320-00-360-1301
NSN 5895-01-226-8169
NSN 6220-01-231-9813
NSN 5945-01-150-1901
NSN 4140-00-492-2468
NSN 6145-01-400-5819
NSN 6320-01-280-4150
NSN 5965-01-568-4103
NSN 7035-00-470-4977
NSN 5835-01-387-4227
NSN 6620-01-237-5603