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 5910-01-264-9707
NSN 6320-01-578-6006
NSN 5998-01-007-8104
NSN 6220-01-369-4592
NSN 6240-01-648-6370
NSN 5835-00-905-7165
NSN 6105-00-280-2808
NSN 7035-01-332-3496
NSN 5945-01-178-5214
NSN 5985-01-293-6571
NSN 2925-00-945-0792
NSN 5945-01-622-3640