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 5998-01-012-2225
NSN 2925-00-455-2367
NSN 5925-01-462-2209
NSN 5915-01-077-2208
NSN 5915-01-213-8422
NSN 5965-01-051-0126
NSN 6610-00-111-7312
NSN 6145-01-308-3858
NSN 6220-01-321-2985
NSN 5835-00-289-9080
NSN 5920-01-602-9407
NSN 6145-00-866-2323