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 5920-01-065-1824
NSN 6130-01-067-7205
NSN 6240-00-329-9573
NSN 5999-01-302-2846
NSN 5985-00-885-5110
NSN 6320-00-089-9425
NSN 4140-00-346-8835
NSN 6240-00-785-8398
NSN 5935-01-432-2413
NSN 6130-01-293-8505
NSN 5960-00-137-4751
NSN 2925-01-477-8037