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 4140-01-162-8967
NSN 2925-01-577-9269
NSN 5910-01-219-5239
NSN 5945-00-231-3199
NSN 6220-00-061-4140
NSN 6240-01-411-6902
NSN 5905-00-516-2871
NSN 5905-01-040-6080
NSN 5855-00-436-3852
NSN 6110-01-575-9647
NSN 5998-00-872-0613
NSN 5895-00-305-7549