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 6130-00-542-8078
NSN 5950-01-461-7799
NSN 5930-01-052-1846
NSN 7035-01-107-2811
NSN 5975-00-332-7221
NSN 5895-00-732-8878
NSN 4140-01-297-5148
NSN 6320-01-607-0347
NSN 5999-00-107-5622
NSN 6240-01-148-3574
NSN 6620-00-248-6950
NSN 5835-01-296-8146