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.
Dept. of the Army 
Dept. of the Air Force 
Defense Threat Reduction Agency 
Dept. of the Navy 
Bosnia and Herzegovina 
Sweden 
Finland 
Lithuania 
Slovenia 
Poland 
Romania 
Bulgaria 
Brazil 
Spain 
Columbia 
Israel 
Singapore 
Kuwait 
Malaysia 
Thailand 
Australia 
Belgium 
Canada 
New Zealand 
France 
Germany 
Republic of Korea 
United Kingdom 
Netherlands 
Portugal 
Italy 
Denmark 
Norway 
Greece 
Turkey 
NATO Maintenance and Supply Agency Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 5930-01-102-7768
NSN 5915-00-153-8486
NSN 5999-00-372-5709
NSN 5920-01-252-0615
NSN 5998-00-147-1233
NSN 5965-01-463-8176
NSN 6650-01-327-3068
NSN 6620-01-300-9502
NSN 5920-00-936-3952
NSN 6685-01-113-7552
NSN 6130-01-337-4596
NSN 6110-00-283-3630