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 6145-01-517-8681
NSN 5855-00-862-3345
NSN 6650-00-773-2030
NSN 5965-01-128-1963
NSN 6650-00-834-9062
NSN 5925-00-284-3726
NSN 5960-01-573-6483
NSN 7035-01-141-3041
NSN 6130-00-605-7087
NSN 5905-01-601-2540
NSN 6650-01-163-1849
NSN 6150-00-925-1005