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 6130-01-415-0590
NSN 6320-01-039-5891
NSN 6105-00-426-5430
NSN 5935-01-544-0654
NSN 5960-00-455-5256
NSN 6650-01-421-8424
NSN 6620-01-434-6538
NSN 6135-00-938-1351
NSN 5999-01-367-1612
NSN 5998-01-631-4328
NSN 6130-00-852-0689
NSN 6645-01-015-3684