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 5985-00-080-2288
NSN 2925-01-282-3206
NSN 5855-01-236-9645
NSN 5950-01-522-2490
NSN 5935-01-607-1767
NSN 5975-01-601-2541
NSN 6135-00-603-4859
NSN 5915-01-537-7331
NSN 6240-01-576-9580
NSN 6620-01-522-8002
NSN 5960-01-399-4327
NSN 5975-01-472-2614