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 5855-01-389-8884
NSN 5996-01-446-0568
NSN 5945-01-160-2355
NSN 5960-00-508-1913
NSN 5895-01-408-7714
NSN 5925-01-294-4718
NSN 6320-01-616-0843
NSN 4140-00-978-9590
NSN 5990-00-636-4218
NSN 5895-00-340-3297
NSN 5935-01-278-9117
NSN 5985-01-303-0850