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 5895-00-148-6419
NSN 5960-01-641-5493
NSN 6610-01-341-4014
NSN 5920-01-139-5137
NSN 5855-00-256-5562
NSN 5930-01-433-3838
NSN 5935-01-446-6396
NSN 6150-01-097-7548
NSN 5960-00-995-2554
NSN 5960-01-178-7500
NSN 5910-00-740-7286
NSN 6220-01-505-3356