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 6110-01-455-8181
NSN 6150-01-265-6892
NSN 7035-01-328-3344
NSN 6620-00-726-8153
NSN 5920-01-273-0994
NSN 7035-01-287-9817
NSN 5895-01-479-4091
NSN 5905-01-206-8685
NSN 5855-00-433-2377
NSN 5905-00-811-5797
NSN 5930-01-050-7858
NSN 6145-00-855-4468