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 6150-01-600-0200
NSN 7035-01-344-4192
NSN 5965-00-111-2073
NSN 2925-01-273-4898
NSN 6220-01-154-5436
NSN 6650-01-347-2291
NSN 5930-01-341-1300
NSN 6220-00-263-4893
NSN 2925-01-157-9204
NSN 6620-01-601-4314
NSN 6130-01-106-3410
NSN 5990-01-414-7618