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 5925-00-420-1386
NSN 5965-01-173-2486
NSN 5925-01-533-4466
NSN 5950-00-863-3977
NSN 6135-00-593-6831
NSN 4140-00-578-7726
NSN 5998-01-088-4915
NSN 7035-00-834-2090
NSN 6620-00-565-9793
NSN 6150-00-504-7656
NSN 5965-00-933-7020
NSN 5920-01-634-0250