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 6110-00-652-6643
NSN 6645-01-518-1107
NSN 5990-01-492-6575
NSN 2925-00-595-7525
NSN 6130-01-147-4459
NSN 6110-01-210-9993
NSN 5998-00-162-2954
NSN 5905-01-461-3738
NSN 5835-01-097-3284
NSN 6610-00-411-7246
NSN 6650-01-383-4526
NSN 6110-01-290-6661