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 5855-01-497-0467
NSN 5945-00-517-2494
NSN 6320-01-207-0636
NSN 5950-01-433-6220
NSN 5999-01-461-8046
NSN 6145-01-103-4863
NSN 5990-01-632-0969
NSN 5920-01-285-0391
NSN 6110-01-618-7462
NSN 5990-01-032-7904
NSN 5945-01-030-8035
NSN 5945-01-461-8494