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 5965-00-167-1255
NSN 6620-01-586-7242
NSN 5965-01-374-1651
NSN 5950-01-462-2633
NSN 5975-01-300-4071
NSN 6650-01-464-8293
NSN 6105-01-530-8443
NSN 5998-01-364-2458
NSN 6610-01-573-4394
NSN 5990-01-054-4255
NSN 5895-01-536-6984
NSN 5895-01-398-6699