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 5915-01-098-0006
NSN 6145-00-681-1585
NSN 5990-01-411-5930
NSN 6620-00-627-3688
NSN 5945-00-352-5124
NSN 2925-00-001-4604
NSN 6645-01-438-6986
NSN 4140-00-494-2569
NSN 6320-01-631-7828
NSN 6645-00-547-4388
NSN 6150-00-291-1868
NSN 5985-01-429-8699