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 5910-01-576-8402
NSN 6685-00-797-3402
NSN 6110-01-235-6021
NSN 5915-01-446-2342
NSN 5930-01-023-7293
NSN 5920-01-183-7938
NSN 5935-01-191-5907
NSN 5985-01-063-8884
NSN 5930-01-170-7666
NSN 6620-00-226-2285
NSN 6150-00-334-0331
NSN 5905-01-062-3332