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 4140-01-583-7401
NSN 6220-00-425-3346
NSN 6685-01-142-1969
NSN 5990-01-504-9265
NSN 5985-01-202-7919
NSN 6650-01-584-1102
NSN 6150-01-485-2322
NSN 6105-00-115-2858
NSN 4140-01-415-6013
NSN 6610-01-406-4985
NSN 5895-01-642-0408
NSN 6620-01-025-4690