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 6130-01-544-2517
NSN 7035-00-931-9415
NSN 5935-00-951-6676
NSN 6650-01-414-9784
NSN 5905-00-503-9920
NSN 5935-00-064-7104
NSN 6620-01-375-2712
NSN 5915-01-459-7486
NSN 5855-01-293-7444
NSN 2925-00-105-3907
NSN 6145-01-412-5140
NSN 5945-00-269-5375