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 6650-00-543-6023
NSN 6130-01-491-2994
NSN 6645-01-252-8870
NSN 5895-00-406-6029
NSN 6320-00-586-5641
NSN 4140-01-343-4808
NSN 5920-00-601-2390
NSN 5855-01-020-3777
NSN 5999-00-051-5578
NSN 5996-00-289-9847
NSN 5905-01-253-0764
NSN 5835-00-341-5441