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 5920-01-440-8962
NSN 6135-01-557-9656
NSN 5965-00-267-4173
NSN 5965-00-963-1796
NSN 6135-00-643-4843
NSN 5835-00-408-5499
NSN 5915-00-217-6517
NSN 6685-01-657-6123
NSN 5930-01-358-2875
NSN 5960-01-170-4057
NSN 5990-00-315-9093
NSN 5960-01-487-2175