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 5945-01-518-1515
NSN 2925-00-660-8131
NSN 2925-00-328-2018
NSN 6610-00-671-8215
NSN 5930-00-468-8320
NSN 5965-00-445-1843
NSN 6240-00-907-3371
NSN 6220-01-650-6302
NSN 6650-01-146-5000
NSN 5930-01-395-2950
NSN 5905-01-030-9635
NSN 6135-01-430-3119