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 5990-01-314-0228
NSN 5835-00-106-2120
NSN 6145-01-361-6374
NSN 5996-01-588-7784
NSN 4140-00-145-7334
NSN 5965-00-246-5612
NSN 6650-01-519-9165
NSN 6220-01-644-2694
NSN 6150-01-078-6301
NSN 4140-00-128-8072
NSN 6685-01-306-2516
NSN 5998-00-734-5346