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 5905-00-581-7998
NSN 5925-01-012-1890
NSN 6220-01-164-1347
NSN 5920-01-527-0961
NSN 6220-00-849-4100
NSN 6135-00-577-8429
NSN 5895-00-532-2376
NSN 6130-01-012-1770
NSN 5930-00-143-4582
NSN 5950-00-920-7146
NSN 5930-00-915-1408
NSN 5915-01-345-7847