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 5925-01-280-4463
NSN 5925-01-337-4928
NSN 5925-00-752-8292
NSN 6135-01-277-3345
NSN 6650-01-322-6431
NSN 6650-01-474-3754
NSN 5965-01-116-7245
NSN 5945-00-127-2485
NSN 5925-01-500-1352
NSN 5975-01-085-5824
NSN 6685-01-476-6989
NSN 7035-01-510-8787