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 6145-01-609-9715
NSN 6220-01-450-9860
NSN 5925-01-604-9326
NSN 6105-01-465-1984
NSN 5960-01-304-0416
NSN 6650-01-475-3714
NSN 5905-01-574-2815
NSN 6650-01-542-4137
NSN 6220-01-077-3461
NSN 5965-01-453-3062
NSN 5999-00-446-6851
NSN 6135-00-896-3187