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 6620-01-560-7832
NSN 6130-00-679-2619
NSN 6135-01-056-4609
NSN 5905-01-607-0355
NSN 6650-00-530-1880
NSN 6110-01-394-2599
NSN 2925-01-199-7394
NSN 5975-01-207-9298
NSN 5945-01-629-5346
NSN 6650-00-857-2260
NSN 6320-01-326-1316
NSN 6220-01-628-7054