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 4140-00-657-4964
NSN 5925-01-474-2204
NSN 5996-01-497-2626
NSN 5905-01-156-7396
NSN 5855-00-110-9341
NSN 6150-01-634-0575
NSN 5920-01-325-7555
NSN 5985-01-624-1165
NSN 4140-01-463-9023
NSN 4140-00-405-9101
NSN 5950-01-588-3406
NSN 5905-01-053-5295