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 6150-01-077-6709
NSN 5990-01-207-6524
NSN 6135-00-583-3966
NSN 6685-01-401-5360
NSN 5835-01-191-3405
NSN 5910-01-132-4387
NSN 5920-01-475-1979
NSN 5925-00-356-8007
NSN 5920-01-435-5091
NSN 2925-00-156-8963
NSN 5945-00-020-3252
NSN 5915-01-517-9852