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 4140-01-197-9883
NSN 2925-01-063-7876
NSN 5835-01-389-8218
NSN 5935-00-019-0991
NSN 5855-00-821-7512
NSN 6320-00-809-5744
NSN 6135-01-265-1384
NSN 5999-01-563-2134
NSN 5905-00-509-4363
NSN 5835-01-472-8897
NSN 5960-00-539-2748
NSN 5996-01-010-3816