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 6150-00-431-9694
NSN 5945-00-197-2866
NSN 5835-01-431-6877
NSN 5945-01-011-2066
NSN 5920-01-591-9424
NSN 5999-01-116-1566
NSN 5999-01-032-5527
NSN 6650-01-254-3048
NSN 6685-01-207-9044
NSN 5999-01-145-8754
NSN 6620-01-486-0937
NSN 6685-01-647-0250