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 5945-01-211-4173
NSN 5950-00-080-6553
NSN 6145-01-586-9357
NSN 5998-01-497-6612
NSN 5985-00-452-2228
NSN 5920-01-550-8538
NSN 5920-00-470-2903
NSN 5950-01-429-1014
NSN 5998-01-455-5228
NSN 5996-01-082-7358
NSN 6135-00-161-0746
NSN 5960-00-865-8969