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 6220-01-334-2251
NSN 5965-01-227-9937
NSN 6110-01-523-2699
NSN 6685-00-278-9496
NSN 6110-01-129-6008
NSN 6145-01-493-9160
NSN 5945-00-622-1586
NSN 5975-01-541-4972
NSN 5990-00-960-6310
NSN 5975-01-339-4004
NSN 7035-01-586-2177
NSN 6105-01-486-7536