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 5998-01-634-0604
NSN 5975-01-239-0187
NSN 5935-01-385-3578
NSN 5975-01-289-8315
NSN 6650-01-168-8451
NSN 6685-01-266-4663
NSN 6130-00-185-4522
NSN 6110-01-145-3814
NSN 5945-01-645-1045
NSN 5996-00-698-8443
NSN 6620-00-912-0255
NSN 5999-01-579-4857