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 6105-00-959-5468
NSN 6610-00-727-0882
NSN 5950-00-674-7228
NSN 6110-00-949-9658
NSN 4140-00-262-9921
NSN 5945-01-377-9927
NSN 5930-01-442-3528
NSN 6110-01-176-5699
NSN 5990-00-787-4438
NSN 5975-01-624-7908
NSN 6650-01-027-1181
NSN 5915-01-446-5028