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 5996-00-683-5176
NSN 6130-01-114-4910
NSN 6135-00-889-1485
NSN 2925-00-660-8131
NSN 5835-00-785-7921
NSN 6645-01-365-4091
NSN 6620-00-420-1061
NSN 6130-01-463-2874
NSN 5985-01-325-9241
NSN 6135-01-554-8523
NSN 5998-00-036-9002
NSN 6110-00-455-9881