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 5950-01-145-5419
NSN 6610-01-389-0620
NSN 5835-01-321-7895
NSN 5835-01-626-9603
NSN
NSN 4140-00-758-7686
NSN 5990-00-495-2859
NSN 5920-00-405-8469
NSN 5999-00-563-4765
NSN 7035-01-302-5359
NSN 5996-00-172-7553
NSN 5910-01-550-4081