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 6240-01-195-6650
NSN 6105-01-432-2249
NSN 7035-00-553-6951
NSN 4140-00-684-7213
NSN 5985-01-307-5451
NSN 6320-01-170-4068
NSN 4140-01-078-8601
NSN 6135-01-278-9717
NSN 6130-00-263-0683
NSN 5895-01-421-2690
NSN 6645-01-328-6886
NSN 6645-01-100-3296