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 5999-01-154-1058
NSN 6610-00-078-9620
NSN 5950-01-487-2271
NSN 5960-01-160-3437
NSN 6610-00-216-4849
NSN 6650-00-336-4828
NSN 6620-01-084-5112
NSN 5998-01-224-8625
NSN 6240-00-782-5991
NSN 6685-01-146-4498
NSN 6135-00-998-5884
NSN 6145-00-404-5134