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 5915-00-159-1403
NSN 5996-00-504-9032
NSN 6150-01-512-9087
NSN 5945-01-160-7861
NSN 5985-01-500-5822
NSN 5920-01-347-5852
NSN 4140-01-583-4988
NSN 5895-00-182-3049
NSN 5925-00-198-3689
NSN 6150-00-470-7136
NSN 5930-01-383-6204
NSN 5930-01-218-7376