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 5915-01-104-7415
NSN 5935-01-438-3949
NSN 5920-00-100-7219
NSN 7035-00-803-3056
NSN 6150-00-542-8668
NSN 6220-00-429-0950
NSN 6645-00-550-7395
NSN 5935-01-244-8425
NSN 4140-01-479-3944
NSN 6135-01-278-9717
NSN 5975-01-412-8668
NSN 5998-01-327-9500