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 6645-01-177-6021
NSN 6135-00-840-6451
NSN 6620-00-017-8098
NSN 5960-00-819-3926
NSN 6145-00-776-9819
NSN 5855-01-191-3404
NSN 6240-01-265-0960
NSN 6650-00-466-1155
NSN 6620-00-944-6446
NSN 6320-01-578-6006
NSN 4140-00-300-4641
NSN 5975-01-339-7789