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: Copper washers including spring washers not threaded
NSN 5895-01-248-9367
NSN 6650-01-017-0980
NSN 5835-00-422-1441
NSN 7035-01-607-1851
NSN 6110-01-123-7285
NSN 6240-01-472-0868
NSN 4140-00-390-5822
NSN 6145-01-497-2147
NSN 5985-00-012-5756
NSN 6240-00-518-2400
NSN 2925-01-446-6976
NSN 5855-01-377-7112