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 6105-01-043-9923
NSN 6320-01-274-2501
NSN 6150-01-285-2473
NSN 5998-00-143-4723
NSN 4140-01-518-5516
NSN 5998-01-063-2326
NSN 5999-01-464-9990
NSN 5996-00-728-3654
NSN 5945-00-504-5744
NSN 6320-00-513-8376
NSN 6685-01-071-2508
NSN 5895-00-830-6248