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 5990-01-091-3567
NSN 6320-00-139-1090
NSN 5910-00-400-5952
NSN 5920-01-318-1702
NSN 5965-00-886-3279
NSN 6685-01-589-5341
NSN 5895-01-652-6079
NSN 5950-01-235-3130
NSN 4140-01-314-4697
NSN 5945-00-789-4123
NSN 6650-01-418-3228
NSN 5935-01-061-0224