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 5999-01-090-5786
NSN 5855-01-634-0259
NSN 5985-01-325-4457
NSN 6320-01-622-5493
NSN 7035-01-462-5766
NSN 5998-00-405-6470
NSN 6620-01-588-2319
NSN 5935-01-053-5333
NSN 5835-01-216-7289
NSN 5920-00-909-5898
NSN 6320-00-036-3688
NSN 5975-00-757-6894