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 6610-01-580-1887
NSN 5945-00-028-4332
NSN 5950-01-170-3477
NSN 5925-00-056-0898
NSN 5960-01-461-9284
NSN 5996-00-691-5544
NSN 5915-00-398-0677
NSN 5990-00-070-9608
NSN 5910-01-522-4920
NSN 5935-01-190-1333
NSN 5920-00-276-8657
NSN 5999-00-539-5310