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 5990-00-543-0234
NSN 6645-01-590-2759
NSN 6150-00-701-3433
NSN 5935-01-396-2990
NSN 6110-01-343-2260
NSN 5960-00-813-9012
NSN 7035-01-374-7954
NSN 2925-00-468-5273
NSN 5895-00-147-0042
NSN 5960-01-609-6565
NSN 6320-01-513-6728
NSN 6150-00-493-1840