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 7035-01-254-3044
NSN 5996-00-553-7348
NSN 6320-00-108-7049
NSN 6110-01-418-6589
NSN 6620-01-327-3011
NSN 5990-00-116-6590
NSN 5855-00-832-9341
NSN 5835-00-513-9680
NSN 6105-00-275-0826
NSN 6620-00-246-5159
NSN 5935-01-350-5108
NSN 5999-01-323-7113