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 6220-01-241-4625
NSN 6145-01-328-7991
NSN 5985-00-919-8621
NSN 6645-00-171-9639
NSN 5945-00-254-4531
NSN 6145-00-246-2424
NSN 5960-00-492-2502
NSN 5910-01-363-3371
NSN 6135-01-077-5705
NSN 5998-00-232-2137
NSN 5855-01-033-1375
NSN 5905-01-144-0870