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 6105-01-375-1997
NSN 5930-00-189-0791
NSN 5910-00-156-0993
NSN 4140-01-117-1960
NSN 5945-01-620-1288
NSN 6145-01-533-9390
NSN 5925-00-734-1441
NSN 6135-00-050-4393
NSN 5960-01-111-1156
NSN 5996-00-222-6049
NSN 6130-00-674-0683
NSN 5935-01-207-0938