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 6610-00-051-0989
NSN 6650-01-328-8363
NSN 6105-01-557-0140
NSN 5965-01-250-3214
NSN 6150-01-546-5584
NSN 5999-00-839-0701
NSN 5996-00-375-5057
NSN 4140-00-225-8586
NSN 5975-01-100-1063
NSN 5945-00-828-7215
NSN 5835-01-063-4920
NSN 5855-01-100-3272