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 6645-01-168-8465
NSN 6320-00-330-4327
NSN 5935-01-420-1769
NSN 6110-01-567-7214
NSN 5990-01-231-9608
NSN 6685-00-925-2287
NSN 6240-00-838-9030
NSN 6685-01-186-9921
NSN 5999-01-159-0959
NSN 5835-01-615-4766
NSN 5960-01-406-0299
NSN 5915-01-536-7950