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 5905-01-030-6413
NSN 6145-01-515-2450
NSN 5999-01-260-2180
NSN 5935-01-104-8552
NSN 5990-01-151-8756
NSN 5945-01-632-8815
NSN 5965-01-138-4979
NSN 6110-00-732-7459
NSN 6650-01-633-9147
NSN 5990-01-254-2936
NSN 6650-00-431-9541
NSN 6320-01-600-5808