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 4140-00-435-5607
NSN 2925-01-259-7092
NSN 5895-00-067-9058
NSN 5920-01-424-6800
NSN 6240-00-141-6143
NSN 6240-01-088-0389
NSN 5965-01-516-1236
NSN 6105-01-108-7950
NSN 5950-00-597-3661
NSN 6610-01-642-0258
NSN 5975-00-775-6432
NSN 4140-01-112-9836