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 6150-00-100-4373
NSN 6130-01-379-7534
NSN 6685-01-281-8860
NSN 6150-01-163-0190
NSN 7035-01-392-3097
NSN 5920-01-541-1643
NSN 4140-00-523-0410
NSN 6110-01-025-6139
NSN 6645-01-552-0004
NSN 6650-00-475-7746
NSN 5975-01-436-2767
NSN 5930-01-486-2960