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 6620-00-053-9568
NSN 5999-00-753-1071
NSN 5935-00-325-5145
NSN 6135-01-010-0891
NSN 5998-00-163-4115
NSN 6610-01-445-2789
NSN 5996-00-086-6542
NSN 6145-00-669-6795
NSN 5999-01-428-9956
NSN 6220-01-021-5642
NSN 5935-01-437-7124
NSN 5960-00-591-2235