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 6240-00-275-1950
NSN 5910-01-593-6347
NSN 6240-01-242-0150
NSN 5915-00-383-1471
NSN 6145-00-683-5353
NSN 5835-01-512-4834
NSN 6105-00-753-5369
NSN 6105-00-006-6733
NSN 6130-01-350-1466
NSN 6130-01-022-4884
NSN 6130-01-014-5419
NSN 2925-00-568-9029