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 5960-01-604-1158
NSN 5855-01-634-0259
NSN 5960-01-097-0645
NSN 5920-00-187-0260
NSN 6145-00-635-9957
NSN 6145-01-381-1303
NSN 6645-01-378-5260
NSN 6645-01-132-7806
NSN 6685-00-776-1730
NSN 2925-00-004-1278
NSN 6650-00-927-3391
NSN 6220-01-182-8196