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 5935-00-203-5852
NSN 6685-01-025-6765
NSN 5960-01-243-0007
NSN 6130-01-447-3164
NSN 5975-00-947-9960
NSN 5920-01-262-2892
NSN 5855-01-382-8725
NSN 6130-01-208-6481
NSN 6135-01-282-4326
NSN 6150-00-580-0511
NSN 5985-01-173-3309
NSN 6150-01-351-6152