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 6620-00-232-2048
NSN 5965-01-021-1356
NSN 6645-01-083-4759
NSN 5920-01-445-3521
NSN 6620-00-492-4936
NSN 6685-00-909-9768
NSN 5998-01-415-3841
NSN 5960-01-475-7428
NSN 5925-01-423-7803
NSN 5920-00-298-0700
NSN 4140-01-499-5557
NSN 6650-00-242-7961