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 5915-01-513-2531
NSN 5965-01-390-6725
NSN 6220-01-160-7249
NSN 5998-01-462-6726
NSN 6645-01-408-4576
NSN 5945-00-213-0101
NSN 5935-01-337-3849
NSN 5990-01-314-0228
NSN 6110-00-038-7230
NSN 5950-01-215-4054
NSN 5835-00-857-4486
NSN 5960-01-641-5493