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 5920-01-349-8136
NSN 4140-01-024-2292
NSN 5935-01-640-9989
NSN 5990-01-533-1347
NSN 6645-01-573-2536
NSN 6610-01-368-3269
NSN 5998-01-468-8354
NSN 7035-01-352-0766
NSN 6220-01-384-4609
NSN 6220-01-296-7125
NSN 2925-00-215-4954
NSN 5905-00-419-3234