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 5925-01-160-0990
NSN 5960-01-299-9182
NSN 6610-01-080-8064
NSN 5990-00-778-9883
NSN 6110-00-322-0854
NSN 6130-01-462-1217
NSN 5965-01-626-5775
NSN 5935-00-161-3429
NSN 5920-01-278-6508
NSN 5905-01-094-3427
NSN 5930-01-036-5279
NSN 5925-01-331-6994