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 6135-01-632-9323
NSN 6620-01-523-4953
NSN 7035-01-552-8475
NSN 5930-01-298-6085
NSN 5965-01-178-2367
NSN 5925-01-390-8822
NSN 4140-01-487-1495
NSN 5945-01-381-1878
NSN 6145-01-487-3773
NSN 6105-00-752-2069
NSN 4140-00-804-5667
NSN 7035-01-412-8322