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 6610-01-391-9355
NSN 6220-01-593-5083
NSN 6650-01-337-0657
NSN 5945-00-455-1492
NSN 5905-00-339-2015
NSN 6130-00-383-0537
NSN 5925-00-957-9894
NSN 6650-00-276-9838
NSN 6110-01-400-4207
NSN 7035-01-542-3276
NSN 2925-01-076-5219
NSN 6220-01-550-6117