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 6145-01-495-1360
NSN 6240-01-354-1222
NSN 5985-00-182-2966
NSN 5905-00-806-7909
NSN 5945-00-203-5575
NSN 6650-01-418-7715
NSN 5920-01-222-5107
NSN 5895-01-239-0043
NSN 6620-01-391-7331
NSN 5915-01-305-3553
NSN 5855-01-468-1431
NSN 6150-01-534-6420