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 5905-00-762-5640
NSN 5910-00-300-9721
NSN 6130-01-386-3858
NSN 7035-01-068-3300
NSN 2925-01-141-7563
NSN 5996-01-495-0763
NSN 5920-00-863-8848
NSN 5999-00-707-6083
NSN 6685-00-188-1991
NSN 4140-01-151-4089
NSN 7035-01-545-8943
NSN 5998-00-224-6944