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.
Brazil 
Spain 
Turkey Classification: Washers other than lock washers, iron or steel
NSN 5910-01-007-4665
NSN 6110-00-304-7201
NSN 5895-01-413-3576
NSN 6650-01-547-6631
NSN 5910-01-317-6513
NSN 6650-01-536-4086
NSN 5935-00-764-2159
NSN 5998-00-137-0469
NSN 5998-01-283-2320
NSN 6110-01-164-3339
NSN 5895-01-365-2244
NSN 5915-01-407-0075