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 6685-01-105-1356
NSN 4140-01-290-1733
NSN 2925-01-191-9668
NSN 5920-01-480-7007
NSN 6135-00-043-4312
NSN 5855-00-167-7893
NSN 5935-00-831-7686
NSN 5998-00-280-7270
NSN 5999-01-572-6985
NSN 4140-01-133-0471
NSN 5895-01-616-1298
NSN 5998-01-470-6716