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 5930-01-087-1797
NSN 5910-00-735-1806
NSN 5999-00-147-9978
NSN 6130-01-347-0103
NSN 6105-01-454-6564
NSN 5925-01-346-1795
NSN 4140-01-442-8479
NSN 5950-01-372-2391
NSN 6650-01-055-3527
NSN 7035-01-003-9142
NSN 6685-01-350-3451
NSN 6220-01-289-3014