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 5950-00-909-3607
NSN 5905-01-478-6957
NSN 5920-01-259-6903
NSN 5965-01-218-7795
NSN 5975-01-322-8515
NSN 5910-00-596-1417
NSN 5999-01-220-8629
NSN 5910-01-633-9963
NSN 5965-00-922-6243
NSN 5960-01-424-1781
NSN 5895-00-814-8462
NSN 4140-01-119-9473