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 5935-01-620-4925
NSN 6320-00-857-4073
NSN 5999-01-388-0377
NSN 6320-00-433-2773
NSN 5990-00-754-2842
NSN 5945-01-143-5980
NSN 5998-00-341-6504
NSN 5855-01-103-8650
NSN 6240-01-316-7703
NSN 4140-01-324-0324
NSN 5935-00-272-7957
NSN 6110-01-555-8715