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 2925-00-853-5039
NSN 5855-01-111-3962
NSN 6105-00-372-4716
NSN 5895-01-258-3220
NSN 6645-00-204-4100
NSN 6130-01-116-4575
NSN 5910-00-650-4949
NSN 5935-01-128-3976
NSN 6645-01-053-3185
NSN 5975-01-317-8765
NSN 5945-01-455-4883
NSN 5985-01-435-4425