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 5905-00-964-9972
NSN 5945-01-438-0598
NSN 6610-01-528-5750
NSN 6645-01-435-8356
NSN 5930-00-117-6317
NSN 4140-00-947-3918
NSN 5835-01-082-6395
NSN 6150-01-634-0235
NSN 7035-01-343-7582
NSN 6135-01-510-4663
NSN 5985-00-992-6981
NSN 6645-01-345-6828