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 5990-00-288-1820
NSN 2925-01-411-4666
NSN 6130-01-553-8854
NSN 5905-01-100-1146
NSN 5999-01-411-9765
NSN 5855-00-149-0766
NSN 7035-01-302-5359
NSN 5920-00-556-6698
NSN 6105-01-077-2497
NSN 6645-00-764-3355
NSN 6650-00-287-5868
NSN 5960-00-188-8648