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 5920-01-023-0040
NSN 6645-01-546-3212
NSN 5996-00-408-0272
NSN 6645-01-318-1874
NSN 5930-00-855-3542
NSN 5925-01-530-7738
NSN 4140-01-583-4988
NSN 6220-01-422-6949
NSN 6645-01-445-5235
NSN 6130-01-137-2181
NSN 5835-01-203-1871
NSN 6610-00-155-1334