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 5985-01-157-9426
NSN 5915-01-317-0258
NSN 4140-00-585-8404
NSN 6110-01-087-9071
NSN 4140-00-809-3602
NSN 6240-00-419-4301
NSN 6650-00-266-6808
NSN 5960-01-162-6166
NSN 6620-00-575-9230
NSN 5960-01-514-5433
NSN 7035-01-429-7954
NSN 6105-01-181-4532