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 6150-00-400-7229
NSN 6145-01-114-2995
NSN 5895-00-220-5267
NSN 6130-01-437-8855
NSN 6135-01-396-4900
NSN 5998-00-274-7215
NSN 5930-01-511-4006
NSN 5935-00-497-1944
NSN 2925-01-607-4340
NSN 5930-01-019-9254
NSN 6620-00-996-8026
NSN 5855-01-382-8725