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: Copper washers including spring washers not threaded
NSN 5999-01-055-6571
NSN 6610-01-577-3834
NSN 5998-00-825-2691
NSN 6220-00-113-3622
NSN 5990-01-157-0441
NSN 5996-01-433-2253
NSN 5945-01-453-1236
NSN 5835-00-931-5568
NSN 7035-01-284-5043
NSN 6130-01-507-5352
NSN 5935-01-514-7852
NSN 5895-01-264-8766