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 6645-01-419-6780
NSN 5975-00-517-8116
NSN 5915-00-073-8606
NSN 7035-01-382-4413
NSN 6240-00-155-7900
NSN 5945-01-388-8281
NSN 5920-01-059-2680
NSN 6105-01-168-8335
NSN 5998-01-614-7589
NSN 4140-01-215-1125
NSN 2925-01-273-4898
NSN 6620-01-438-0415