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: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 6620-00-449-1973
NSN 5975-00-618-0161
NSN 6130-01-340-4828
NSN 5895-00-482-2742
NSN 5975-00-459-7913
NSN 5925-00-928-6081
NSN 6240-00-170-5302
NSN 5960-01-462-1864
NSN 6240-00-175-9104
NSN 5915-01-016-3778
NSN 6220-01-153-7943
NSN 6135-00-299-6918