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 5920-01-187-2267
NSN 5920-00-853-8266
NSN 5935-01-660-1086
NSN 5910-00-636-2155
NSN 6240-00-110-4497
NSN 5998-01-339-9365
NSN 5945-01-476-0897
NSN 5960-01-471-8201
NSN 6610-01-009-5908
NSN 5930-01-387-3345
NSN 5895-00-024-7368
NSN 5985-00-880-7622