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 5998-01-502-5942
NSN 5915-01-653-8863
NSN 5945-00-005-0325
NSN 6650-00-488-6305
NSN 5998-01-068-2670
NSN 6135-01-422-1440
NSN 5930-01-435-2260
NSN 7035-00-938-1505
NSN 7035-01-357-4522
NSN 5920-01-167-8869
NSN 5960-00-303-3675
NSN 7035-01-475-9017