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 6240-01-247-6212
NSN 6620-01-223-7333
NSN 5925-00-964-4989
NSN 5998-01-501-6058
NSN 6685-01-049-3563
NSN 7035-01-543-0236
NSN 5990-01-354-6255
NSN 2925-01-488-2966
NSN 5945-01-491-8981
NSN 5950-01-077-2397
NSN 5920-01-609-2617
NSN 6645-01-592-2557