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 6610-00-457-0325
NSN 5920-01-241-3227
NSN 5999-01-634-0576
NSN 5930-00-679-5283
NSN 5905-00-924-9391
NSN 4140-01-446-6832
NSN 5985-00-177-8049
NSN 6130-01-449-1178
NSN 2925-01-394-1812
NSN 6685-00-325-4197
NSN 6105-00-081-9090
NSN 5985-01-383-2826