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 5999-01-142-2090
NSN 5999-01-057-7334
NSN 2925-00-998-3510
NSN 2925-01-290-4562
NSN 6150-01-454-3803
NSN 6135-01-502-8771
NSN 5920-01-255-3077
NSN 5920-01-119-9216
NSN 6645-01-235-9465
NSN 6135-00-643-4843
NSN 5930-01-429-0944
NSN 5996-01-263-1969