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 6150-01-621-4885
NSN 6240-01-412-0715
NSN 5990-01-230-6301
NSN 6645-00-925-2887
NSN 5965-01-495-1170
NSN 5915-01-645-6170
NSN 5895-01-475-5271
NSN 5935-01-267-8819
NSN 5945-01-274-2265
NSN 5998-00-076-1468
NSN 6150-01-400-4211
NSN 6610-01-648-9997