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 5945-01-227-1525
NSN 5975-01-475-0767
NSN 5925-01-455-7872
NSN 6650-00-809-1817
NSN 5910-00-957-4366
NSN 5965-01-581-1225
NSN 6150-01-360-0216
NSN 6610-01-371-3006
NSN 5996-00-831-8167
NSN 5950-01-155-3787
NSN 6610-00-984-6528
NSN 6620-00-930-5680