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 6685-01-257-5731
NSN 6610-00-004-2879
NSN 5910-01-313-9908
NSN 6610-01-473-0521
NSN 6130-01-534-5959
NSN 5935-01-357-5064
NSN 5935-01-528-5964
NSN 6650-01-145-5173
NSN 6685-00-054-6713
NSN 6135-01-395-6693
NSN 6110-01-648-8036
NSN 5905-01-625-3428