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 6105-00-876-8057
NSN 6240-01-577-7170
NSN 4140-01-571-7913
NSN 5950-01-055-7861
NSN 5925-01-374-3112
NSN 6145-01-462-1120
NSN 5999-01-040-4585
NSN 6105-00-307-6912
NSN 6220-01-339-0067
NSN 5915-01-177-0320
NSN 5996-01-262-8953
NSN 5930-00-551-2088