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.
Austria 
Spain 
Greece 
Turkey Classification: Copper washers including spring washers not threaded
NSN 5935-01-462-6235
NSN 5999-01-447-8877
NSN 5910-00-798-8792
NSN 6110-00-971-2035
NSN 5945-01-472-2099
NSN 5960-01-481-3722
NSN 7035-01-364-8454
NSN 6145-01-627-6692
NSN 5975-01-391-7529
NSN 6610-01-550-2368
NSN 5985-01-622-8592
NSN 6150-01-177-1732