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 5920-01-163-3973
NSN 5935-01-270-1081
NSN 5855-00-782-7714
NSN 5965-01-537-1536
NSN 6320-01-265-0665
NSN 6135-00-110-1981
NSN 2925-01-480-8273
NSN 5905-00-780-5488
NSN 6110-00-594-7640
NSN 5920-00-844-2488
NSN 6105-01-533-8230
NSN 5960-01-614-8005