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 5999-00-087-7923
NSN 5920-00-291-1379
NSN 6110-01-206-6479
NSN 5999-01-654-4946
NSN 6145-01-104-8186
NSN 6240-00-145-1536
NSN 5915-00-290-1569
NSN 6645-01-113-5411
NSN 4140-01-400-3610
NSN 5965-01-607-1966
NSN 5960-01-309-5933
NSN 5910-00-140-9537