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 5998-01-634-0604
NSN 5915-00-983-8274
NSN 5915-01-557-5332
NSN 5855-01-556-2665
NSN 6320-01-205-8399
NSN 5855-00-228-8446
NSN 4140-00-145-7334
NSN 2925-01-534-7314
NSN 5985-01-327-3017
NSN 5990-00-591-3793
NSN 5835-01-224-2792
NSN 4140-01-584-5706