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 4140-01-443-9164
NSN 5960-01-589-6846
NSN 5999-01-195-3139
NSN 5960-01-495-0859
NSN 5950-01-212-2838
NSN 6105-01-152-8496
NSN 5895-01-512-0488
NSN 5915-00-719-6455
NSN 5996-00-138-7148
NSN 4140-01-334-9043
NSN 5915-01-416-1528
NSN 5990-01-162-9220