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 5990-01-065-0492
NSN 5950-01-131-6875
NSN 6105-01-369-4702
NSN 6130-01-513-8597
NSN 6610-01-571-1213
NSN 6150-01-416-4823
NSN 6105-01-445-6574
NSN 4140-01-158-4139
NSN 5950-01-308-7583
NSN 6105-01-128-3153
NSN 5975-01-117-0592
NSN 5835-01-582-8530