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 6240-01-435-7973
NSN 6685-01-014-5336
NSN 5905-00-293-8294
NSN 5945-00-399-5897
NSN 5905-01-075-8898
NSN 5925-01-112-5405
NSN 6685-01-388-1730
NSN 6150-00-183-0972
NSN 5990-00-170-9553
NSN 5999-01-589-7155
NSN 4140-01-132-4527
NSN 6145-01-562-0226