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 5950-00-188-3214
NSN 5935-00-570-4908
NSN 5905-01-587-3801
NSN 5910-00-558-4758
NSN 6620-01-499-3884
NSN 6320-01-443-3826
NSN 6130-00-649-8953
NSN 6620-01-262-2365
NSN 5999-01-399-0507
NSN 5855-01-566-4032
NSN 5975-00-432-9519
NSN 5950-01-308-6485