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 6220-01-238-5332
NSN 5920-01-632-3839
NSN 5930-00-636-8888
NSN 6105-00-821-2478
NSN 7035-01-445-3563
NSN 5920-01-191-3488
NSN 6610-00-934-1044
NSN 5998-00-362-6658
NSN 5999-01-595-9556
NSN 5910-01-148-0805
NSN 4140-01-445-6656
NSN 6105-01-466-9090