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 
Dept. of the Navy 
Greece 
Turkey Classification: Made-up articles of textile material, nesoi
NSN 6650-01-509-2932
NSN 6645-00-460-0528
NSN 5996-01-529-4964
NSN 5920-00-189-0858
NSN 6130-00-649-8953
NSN 5990-01-443-2931
NSN 5905-01-433-7871
NSN 6220-01-386-0850
NSN 5915-00-180-3979
NSN 5996-01-326-6313
NSN 5915-01-304-2087
NSN 5935-00-004-2160