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 5965-01-530-6565
NSN 5920-01-232-7465
NSN 5915-00-781-2648
NSN 5855-01-531-5726
NSN 6110-00-635-8787
NSN 5905-01-487-7241
NSN 5945-01-587-8348
NSN 5999-01-566-3192
NSN 6105-01-168-2906
NSN 5950-01-521-3540
NSN 5920-00-948-9071
NSN 6110-01-568-5128