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 6320-01-488-5581
NSN 6150-01-315-1867
NSN 5905-01-451-6081
NSN 5925-01-422-6783
NSN 5950-00-484-9473
NSN 6610-01-383-6982
NSN 6135-01-031-8078
NSN 4140-01-589-0647
NSN 5990-01-619-8514
NSN 6130-01-415-7595
NSN 5960-01-575-7818
NSN 5975-01-027-2157