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 4140-01-020-6026
NSN 5925-01-353-5350
NSN 5895-01-164-2218
NSN 5920-01-151-4368
NSN 6320-00-823-2015
NSN 5905-01-588-6148
NSN 6645-01-089-5522
NSN 6130-01-373-6568
NSN 4140-01-027-1871
NSN 6135-00-856-1343
NSN 5996-01-622-8976
NSN 6105-01-147-5586