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 5999-01-176-8441
NSN 5975-01-090-1062
NSN 6620-01-332-0623
NSN 5998-01-436-4166
NSN 6320-01-290-5271
NSN 6620-01-504-1827
NSN 5920-01-153-7487
NSN 5925-01-095-9990
NSN 5996-00-613-1761
NSN 6105-01-152-2800
NSN 6110-01-227-2490
NSN 5910-01-265-7669