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 6150-01-177-4496
NSN 5996-00-929-2216
NSN 6650-00-431-9541
NSN 6130-00-149-0705
NSN 5895-01-495-0244
NSN 5935-01-651-8546
NSN 6130-01-508-4360
NSN 5965-00-407-4828
NSN 4140-01-535-2691
NSN 5985-00-403-4145
NSN 5965-01-341-6545
NSN 5975-01-081-6836