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.
Austria 
Spain 
Greece 
Turkey Classification: Copper washers including spring washers not threaded
NSN 5965-01-321-9598
NSN 5925-01-268-5275
NSN 5950-01-044-5039
NSN 5985-01-459-8441
NSN 7035-01-350-4247
NSN 5895-01-585-2129
NSN 5996-00-185-9376
NSN 5985-00-211-7383
NSN 6650-00-524-0168
NSN 5965-01-470-0393
NSN 4140-01-614-6091
NSN 6320-01-607-1491