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 6150-01-309-3071
NSN 5905-01-403-2806
NSN 2925-01-175-1217
NSN 7035-01-049-6776
NSN 6320-01-155-8295
NSN 5915-00-155-7626
NSN 5855-00-058-1293
NSN 6150-01-634-0575
NSN 6110-01-397-2885
NSN 5835-00-624-1548
NSN 5975-00-719-6236
NSN 5945-01-281-0029