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 5930-01-442-3075
NSN 5999-01-477-6774
NSN 5915-01-162-5657
NSN 6220-00-281-3822
NSN 5996-00-809-5516
NSN 5990-01-641-5782
NSN 5999-01-646-6204
NSN 5965-01-323-8134
NSN 6610-01-455-4977
NSN 5996-01-343-0651
NSN 5985-01-340-5777
NSN 5835-01-293-6453