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 6240-00-079-0112
NSN 5945-01-588-0923
NSN 5999-01-400-1999
NSN 7035-01-449-1189
NSN 6650-00-957-9985
NSN 5905-01-392-2291
NSN 5935-00-227-1110
NSN 5905-01-413-8074
NSN 6135-00-708-0892
NSN 5920-00-823-0969
NSN 5905-00-203-3929
NSN 4140-00-968-7367