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 5905-00-100-2154
NSN 6320-00-228-5678
NSN 6145-01-006-6984
NSN 6135-01-026-9960
NSN 5985-01-508-1407
NSN 6650-01-232-0275
NSN 6240-00-935-7058
NSN 4140-00-116-1022
NSN 7035-01-008-7248
NSN 6110-01-217-1007
NSN 7035-01-082-0311
NSN 5960-01-173-7956