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 5895-01-560-7636
NSN 5905-01-040-6199
NSN 5915-01-239-4112
NSN 5945-01-114-2124
NSN 5920-01-257-5124
NSN 6620-00-963-1319
NSN 5915-00-097-3974
NSN 5895-00-787-0239
NSN 5945-00-367-0593
NSN 5835-01-432-1277
NSN 6650-00-433-2349
NSN 5975-00-070-5987