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 5895-01-507-4569
NSN 6610-00-983-4482
NSN 6110-01-216-9725
NSN 5935-01-118-9823
NSN 5905-01-342-3918
NSN 6130-01-417-2885
NSN 5905-01-143-8463
NSN 5999-00-565-1748
NSN 6220-01-550-3973
NSN 6620-00-155-2608
NSN 5930-00-254-4523
NSN 2925-00-953-2353