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 6320-01-631-7828
NSN 7035-00-368-8761
NSN 6135-01-415-1163
NSN 5965-01-433-9864
NSN 5998-01-530-6222
NSN 5999-01-296-1065
NSN 7035-01-145-5059
NSN 5925-00-488-2741
NSN 6645-01-057-7987
NSN 6110-00-764-2014
NSN 5960-00-413-8129
NSN 6620-00-003-2020