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 6135-00-840-6451
NSN 6240-00-243-5796
NSN 6135-01-458-3851
NSN 5915-01-338-0771
NSN 5935-00-004-7565
NSN 5998-00-113-4843
NSN 6145-00-515-6931
NSN 5935-01-608-2708
NSN 5905-00-982-1917
NSN 5999-00-735-4393
NSN 5950-00-740-8703
NSN 5990-01-224-8052