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 5975-01-425-6033
NSN 5925-00-130-2586
NSN 5855-01-052-7149
NSN 5930-01-385-8580
NSN 6650-01-622-0706
NSN 5985-01-206-4086
NSN 5920-01-121-0740
NSN 5998-01-211-6752
NSN 6130-00-337-4695
NSN 6240-00-696-0249
NSN 5935-01-578-9208
NSN 4140-00-189-0235