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 6685-01-495-9776
NSN 5930-00-886-4829
NSN 6650-01-021-2436
NSN 5935-00-527-3826
NSN 5999-00-007-2105
NSN 6150-01-437-1588
NSN 5930-00-449-3803
NSN 5930-01-569-5706
NSN 5998-01-588-0384
NSN 5999-01-570-6421
NSN 4140-00-266-9132
NSN 6620-00-843-5336