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 5930-00-060-7633
NSN 5990-00-247-0975
NSN 5920-01-124-7200
NSN 6105-01-513-2529
NSN 5905-00-939-0545
NSN 5925-01-106-6726
NSN 5915-00-071-2267
NSN 5915-01-607-0298
NSN 5910-01-424-0225
NSN 5915-01-441-2238
NSN 2925-01-357-2512
NSN 5905-01-398-0605