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 5950-01-424-0257
NSN 7035-01-521-3449
NSN 2925-00-084-1176
NSN 6240-01-117-1934
NSN 5910-01-494-1982
NSN 5910-00-368-4108
NSN 5960-00-183-8016
NSN 5910-01-641-1600
NSN 5935-01-259-6295
NSN 5915-01-461-1505
NSN 6135-01-440-9412
NSN 5905-01-227-5576