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 6320-01-098-2503
NSN 5990-01-544-4360
NSN 5985-01-146-4141
NSN 5935-01-494-6367
NSN 6130-00-175-8063
NSN 5855-01-020-7982
NSN 6240-00-573-7514
NSN 6110-01-255-9892
NSN 5935-00-900-3497
NSN 6620-01-605-1465
NSN 5975-01-435-4604
NSN 6650-00-088-4741