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 5925-01-205-7482
NSN 5925-01-282-5518
NSN 5990-00-576-4882
NSN 5990-01-171-3547
NSN 6150-01-347-3615
NSN 5998-01-291-7335
NSN 6150-01-442-4997
NSN 6130-01-424-0360
NSN 5835-00-523-0736
NSN 5915-01-113-7872
NSN 6145-00-729-3702
NSN 5996-00-912-5030