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 6645-01-240-5499
NSN 5950-00-978-6682
NSN 6110-00-242-6216
NSN 6650-01-293-8719
NSN 5835-01-036-4951
NSN 6145-00-296-0085
NSN 5895-01-328-4740
NSN 5925-01-128-3582
NSN 5925-01-051-3696
NSN 6610-01-304-9914
NSN 5855-01-406-4821
NSN 6105-01-198-6421