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 5895-00-781-8636
NSN 5925-01-634-0664
NSN 6220-01-652-0257
NSN 4140-01-633-8555
NSN 5990-01-123-4226
NSN 6145-00-793-7816
NSN 6650-01-069-2501
NSN 5925-00-922-7604
NSN 6110-00-054-2527
NSN 6610-00-703-6819
NSN 5915-00-175-8238
NSN 2925-01-446-0525