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 5960-01-412-9474
NSN 5930-01-422-4262
NSN 6105-00-384-1693
NSN 5990-01-497-0093
NSN 5996-00-022-7639
NSN 5985-01-659-5584
NSN 7035-01-658-1623
NSN 6220-01-430-0171
NSN 4140-01-042-4765
NSN 6150-00-390-3422
NSN 6130-01-467-6634
NSN 5975-01-222-2088