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 6650-01-437-0855
NSN 5998-01-521-5945
NSN 5975-01-197-7673
NSN 6150-01-474-9323
NSN 6645-01-213-8236
NSN 5996-00-974-9583
NSN 5835-00-413-4701
NSN 5925-00-998-1633
NSN 5935-01-361-1942
NSN 5920-01-207-7952
NSN 6130-01-348-9603
NSN 5999-01-188-8316