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: Other fabricated asbestos fibers; mixtures based on asbstos or on asbestos and magnesium carbonate
NSN 6145-01-031-2081
NSN 6650-00-992-4540
NSN 6130-01-347-5726
NSN 5920-00-149-1469
NSN 6620-01-487-7435
NSN 6135-01-597-7685
NSN 6130-01-616-4165
NSN 5930-01-373-6855
NSN 5855-01-385-4234
NSN 6620-00-632-3631
NSN 4140-00-842-1898
NSN 6620-01-494-9858