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 6150-00-679-3285
NSN 5960-01-423-1085
NSN 6135-00-161-0746
NSN 6220-01-456-2946
NSN 2925-01-429-2235
NSN 4140-00-551-3151
NSN 6610-00-136-2662
NSN 5999-01-477-4267
NSN 5990-00-594-7291
NSN 5915-01-206-5056
NSN 5985-01-066-0655
NSN 5965-00-463-3900