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 5998-00-287-6819
NSN 6220-00-671-7960
NSN 2925-01-595-4345
NSN 5930-00-422-0825
NSN 6135-01-200-5144
NSN 5945-00-597-5722
NSN 6320-01-560-7177
NSN 6320-00-646-3311
NSN 5935-01-485-2237
NSN 5945-01-461-0507
NSN 5960-01-507-9112
NSN 5975-01-267-3479