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 5998-01-656-8973
NSN 2925-00-365-3289
NSN 5998-01-420-5941
NSN 6110-01-317-4286
NSN 4140-01-033-1238
NSN 5990-00-130-1930
NSN 7035-00-679-9027
NSN 5965-01-415-0872
NSN 5990-00-512-6367
NSN 5905-00-266-0943
NSN 5910-01-032-1960
NSN 5945-01-567-1501