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 5895-01-381-6043
NSN 6320-01-498-4954
NSN 6320-01-157-9076
NSN 5920-01-120-5093
NSN 6650-00-916-5914
NSN 5935-00-810-4025
NSN 4140-01-127-3984
NSN 6145-00-717-8421
NSN 5999-01-643-9806
NSN 5895-00-073-8066
NSN 6650-00-945-9105
NSN 5895-01-143-2182