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 5915-01-563-1832
NSN 6610-01-218-6246
NSN 5945-00-309-5293
NSN 6105-00-504-1978
NSN 5935-01-297-3073
NSN 6130-00-253-5352
NSN 5998-01-231-9328
NSN 6650-00-539-7298
NSN 6240-00-740-8901
NSN 5935-01-420-0147
NSN 2925-01-121-3355
NSN 6320-00-270-8222