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 6130-01-202-9304
NSN 5920-01-419-5271
NSN 4140-01-560-9401
NSN 6105-01-152-4191
NSN 5915-01-394-7257
NSN 4140-00-632-1332
NSN 7035-01-194-9482
NSN 5935-01-349-0781
NSN 5996-01-464-4276
NSN 6220-01-599-6183
NSN 7035-00-760-5479
NSN 6130-01-386-2894