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 6220-01-054-9112
NSN 6650-01-193-5911
NSN 5920-00-551-1314
NSN 5975-01-385-8039
NSN 5895-01-130-1617
NSN 6620-00-658-6588
NSN 5990-00-170-4239
NSN 6620-01-548-7441
NSN 6130-01-551-1185
NSN 5910-00-528-8961
NSN 6110-00-244-1209
NSN 5998-01-237-2541