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 5920-01-022-2384
NSN 5975-01-143-1920
NSN 5999-00-177-1791
NSN 6145-00-248-8965
NSN 4140-00-846-4786
NSN 6610-00-115-3519
NSN 6130-01-137-1015
NSN 4140-01-378-5753
NSN 6650-00-912-4229
NSN 5905-01-541-0346
NSN 5985-01-565-1516
NSN 5930-01-305-6765