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 4140-00-794-2960
NSN 5930-01-307-4501
NSN 5935-01-461-8697
NSN 6650-01-428-9958
NSN 6620-00-160-0844
NSN 6645-01-145-7357
NSN 5950-00-816-9913
NSN 5999-00-465-9205
NSN 6105-00-463-5305
NSN 6620-00-999-2425
NSN 5925-00-246-8812
NSN 6110-01-276-0985