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.
Classification: Copper washers including spring washers not threaded
NSN 6645-01-629-9657
NSN 6620-01-091-8413
NSN 5998-01-604-8945
NSN 6650-01-562-9944
NSN 5935-01-604-0401
NSN 6105-01-416-8454
NSN 5835-01-384-3206
NSN 5999-00-203-5573
NSN 6320-00-025-9910
NSN 5985-01-264-2344
NSN 5985-00-409-0026
NSN 6650-00-599-9509