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 7035-00-470-4977
NSN 6220-01-631-5917
NSN 6320-00-459-8973
NSN 6130-00-004-9417
NSN 5925-01-320-2767
NSN 5915-01-502-6623
NSN 5905-00-269-5452
NSN 2925-00-038-0596
NSN 6620-01-421-3917
NSN 5905-00-165-8891
NSN 5998-01-174-8964
NSN 5925-01-138-4930