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 5925-01-253-2765
NSN 5998-01-383-8195
NSN 5999-00-089-3072
NSN 6105-01-191-2015
NSN 5990-00-366-0112
NSN 5855-00-995-2098
NSN 6610-00-500-6944
NSN 5960-01-624-1170
NSN 5835-00-284-0882
NSN 5999-01-583-2399
NSN 6685-01-176-9676
NSN 5855-01-462-5150