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 6650-00-503-3918
NSN 5930-00-119-0142
NSN 5835-01-493-1826
NSN 5920-00-900-8839
NSN 5915-01-062-4274
NSN 5855-01-579-3864
NSN 6110-01-315-7893
NSN 6610-01-625-6855
NSN 5910-00-028-4323
NSN 5996-00-909-4753
NSN 6610-01-096-8746
NSN 6145-00-072-7028