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 5910-00-370-2471
NSN 6685-01-381-0759
NSN 5835-01-332-2867
NSN 5835-01-462-5983
NSN 6320-00-845-3261
NSN 6685-01-087-7347
NSN 6145-00-139-1203
NSN 6150-00-365-1711
NSN 5935-01-264-8336
NSN 5895-00-288-5878
NSN 6650-00-107-8509
NSN 5930-01-472-2909