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.
Spain 
Denmark 
Greece Classification: Copper washers including spring washers not threaded
NSN 6650-00-116-7439
NSN 5998-01-143-8243
NSN 5998-01-622-7429
NSN 6150-01-109-9086
NSN 6320-00-433-2773
NSN 6145-01-393-1346
NSN 5925-01-316-0933
NSN 6240-01-139-3377
NSN 5925-01-106-3641
NSN 6650-01-227-1632
NSN 5920-01-599-4432
NSN 2925-01-633-4048