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 6645-01-141-0310
NSN 5935-01-534-1785
NSN 5996-01-046-2799
NSN 5930-01-350-8098
NSN 5935-00-555-1897
NSN 5835-00-922-1263
NSN 5920-00-136-9459
NSN 6645-01-083-2001
NSN 5999-01-501-4472
NSN 5925-01-037-8175
NSN 5996-01-412-3038
NSN 5999-00-151-7264