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 6620-01-360-4725
NSN 5975-01-432-1554
NSN 5835-01-172-5884
NSN 5930-00-835-1791
NSN 5975-00-000-0126
NSN 5960-00-736-8568
NSN 5935-00-443-1016
NSN 6135-00-170-8819
NSN 6150-01-437-1397
NSN 5945-00-196-4772
NSN 5999-00-597-5054
NSN 6645-01-611-2894