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 6145-01-497-5284
NSN 5920-00-357-0260
NSN 6150-01-370-4863
NSN 6130-01-292-8716
NSN 6650-01-462-0830
NSN 6220-01-540-7849
NSN 5998-00-058-0516
NSN 5925-01-641-6549
NSN 5960-01-439-9517
NSN 6145-01-085-7394
NSN 5965-01-620-4741
NSN 5925-01-266-8972