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 5990-00-897-7785
NSN 5998-00-142-5833
NSN 6240-01-142-0729
NSN 2925-01-141-7563
NSN 5905-00-666-4983
NSN 6150-01-147-2027
NSN 5975-01-143-5358
NSN 5925-01-069-2201
NSN 5925-00-967-6391
NSN 6620-01-379-7605
NSN 6150-01-308-7056
NSN 6320-01-202-8761