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 5855-01-249-0717
NSN 5835-01-050-7882
NSN 5985-01-346-5343
NSN 6610-01-114-7176
NSN 6650-00-809-1817
NSN 5945-00-252-7980
NSN 5910-01-526-2113
NSN 6320-00-809-5744
NSN 6135-00-377-9165
NSN 5935-01-634-0668
NSN 4140-00-861-5399
NSN 6130-01-296-0806