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 6645-01-143-0137
NSN 4140-01-344-2674
NSN 6130-01-356-4352
NSN 7035-00-480-6767
NSN 6110-00-321-1271
NSN 5915-00-236-8062
NSN 5945-00-216-8755
NSN 6130-00-367-2706
NSN 6320-01-144-3810
NSN 6240-01-465-6278
NSN 5965-00-171-1265
NSN 6220-01-029-8605