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 5975-01-328-8987
NSN 5910-01-660-9223
NSN 6620-01-087-4361
NSN 6240-01-235-2604
NSN 6650-00-182-7791
NSN 5920-00-961-0497
NSN 5965-01-443-2416
NSN 5950-00-211-2477
NSN 6130-01-458-5696
NSN 6135-00-097-8162
NSN 5920-00-592-7598
NSN 5945-01-245-8635