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 6645-00-183-8812
NSN 5975-01-578-6829
NSN 5996-01-449-0666
NSN 5930-00-987-3541
NSN 5996-01-412-6513
NSN 5905-00-370-2468
NSN 6610-01-184-3016
NSN 6220-01-476-3947
NSN 6240-01-327-4120
NSN 6685-01-241-2325
NSN 5935-01-535-1516
NSN 7035-00-337-8745