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.
France 
Portugal 
Norway Classification: Washers other than lock washers, iron or steel
NSN 5999-01-461-2076
NSN 5930-01-518-5788
NSN 5998-01-314-5452
NSN 6620-01-364-2103
NSN 5835-00-858-6631
NSN 6320-01-399-6177
NSN 6650-00-724-8258
NSN 5945-01-017-3567
NSN 5998-01-622-8598
NSN 5925-01-448-6958
NSN 5960-01-199-1157
NSN 6620-01-011-3449