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 6135-00-078-9931
NSN 5996-01-566-6600
NSN 5920-01-013-8594
NSN 6610-00-466-3104
NSN 6135-01-353-3802
NSN 6220-01-196-8087
NSN 5965-01-316-4429
NSN 6620-01-044-3371
NSN 6110-00-228-4308
NSN 5999-01-122-2987
NSN 5985-01-533-8239
NSN 6220-01-107-5584