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 6620-01-629-3210
NSN 6220-00-823-6688
NSN 5998-00-647-1225
NSN 6620-01-465-4227
NSN 5990-01-459-9533
NSN 5835-00-930-8500
NSN 6110-01-257-1145
NSN 5945-01-381-1356
NSN 5990-01-213-6319
NSN 5855-01-321-3881
NSN 5905-01-010-8339
NSN 5945-01-202-8119