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 6110-00-078-8565
NSN 5905-00-441-0630
NSN 5925-01-491-5057
NSN 6650-01-633-9147
NSN 6130-01-439-6494
NSN 6240-01-097-4722
NSN 5985-01-242-9467
NSN 6645-01-517-0259
NSN 5975-01-392-1187
NSN 5985-01-094-7634
NSN 2925-01-440-6146
NSN 6620-01-300-6992