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 5910-00-378-4725
NSN 5975-00-497-5431
NSN 5930-01-206-1235
NSN 5975-01-599-5552
NSN 5920-01-188-2400
NSN 5835-01-580-0446
NSN 5925-00-880-3294
NSN 6620-01-398-7326
NSN 4140-00-566-3896
NSN 5985-00-422-4978
NSN 5835-00-458-4392
NSN 6130-01-054-0688