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 6610-01-250-9327
NSN 5935-00-160-8099
NSN 5930-00-597-2584
NSN 6130-01-535-0952
NSN 6610-00-360-2713
NSN 5999-01-029-4045
NSN 5905-00-101-2087
NSN 5905-01-283-2911
NSN 5920-01-216-1981
NSN 5855-01-616-8724
NSN 6320-01-236-9562
NSN 6145-00-195-1428