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 5930-01-248-9703
NSN 6110-00-439-4088
NSN 6135-00-938-1351
NSN 5990-00-054-0512
NSN 4140-00-602-5973
NSN 5945-01-652-5596
NSN 5930-00-403-3279
NSN 4140-01-430-5310
NSN 5935-01-206-5376
NSN 6240-01-401-5340
NSN 6135-01-305-6958
NSN 5925-01-160-7609