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.
Italy 
Greece 
Turkey Classification: Copper washers including spring washers not threaded
NSN 6645-00-634-9317
NSN 5895-00-488-6248
NSN 5990-00-647-4008
NSN 5960-01-336-3130
NSN 5855-00-361-0167
NSN 5965-01-258-5662
NSN 6145-01-276-3415
NSN 6685-01-396-4080
NSN 5965-01-234-6844
NSN 4140-01-374-8467
NSN 6620-01-245-0184
NSN 5915-01-477-0148