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 5835-01-431-2178
NSN 6650-01-327-3068
NSN 5925-01-641-8760
NSN 6620-00-589-0071
NSN 5965-00-478-3442
NSN 5935-01-171-6593
NSN 5910-01-454-3929
NSN 7035-01-227-2546
NSN 6135-01-167-7604
NSN 6150-00-922-8908
NSN 5985-01-643-8975
NSN 6135-01-351-1131