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 5975-01-339-8173
NSN 5905-01-380-9019
NSN 5998-00-878-0611
NSN 6650-01-386-6711
NSN 5915-00-420-0479
NSN 5920-01-650-1820
NSN 6220-00-942-2678
NSN 5996-01-437-7234
NSN 6130-00-916-5290
NSN 6145-01-293-2055
NSN 5945-01-571-8903
NSN 5945-00-430-9718