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 6220-01-188-6962
NSN 6610-01-154-7949
NSN 5910-01-450-6608
NSN 6150-01-091-1485
NSN 5945-01-646-6483
NSN 5920-01-432-2428
NSN 5905-00-259-6291
NSN 5990-00-321-8459
NSN 6150-00-946-5071
NSN 6320-00-371-8335
NSN 6150-01-604-4515
NSN 5855-01-172-4568