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 5910-00-814-5866
NSN 5925-01-294-3077
NSN 5930-01-386-5571
NSN 7035-01-466-6251
NSN 5920-01-596-7874
NSN 5835-00-823-6116
NSN 5935-00-632-7795
NSN 2925-01-430-4206
NSN 6645-01-505-5772
NSN 5945-01-351-7869
NSN 2925-01-581-7478
NSN 6130-00-146-1525