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 6320-01-176-8367
NSN 5835-01-373-9506
NSN 5925-01-419-0832
NSN 6240-01-042-3650
NSN 5990-01-218-5160
NSN 6145-00-441-2512
NSN 5950-00-825-5561
NSN 5855-00-149-0766
NSN 5998-01-041-3840
NSN 5930-00-684-2991
NSN 2925-00-228-8854
NSN 6135-01-591-7139