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 5996-00-525-1777
NSN 6320-01-320-3305
NSN 2925-00-468-5273
NSN 5930-00-539-6106
NSN 5855-01-169-4275
NSN 2925-01-376-9236
NSN 6620-01-453-9971
NSN 4140-01-242-0295
NSN 5996-01-212-9866
NSN 6645-01-449-1824
NSN 4140-01-206-4981
NSN 6620-01-116-3983