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 5920-01-582-8569
NSN 5935-01-602-8366
NSN 5835-01-354-0566
NSN 5835-01-327-6324
NSN 5915-00-072-5317
NSN 5996-01-238-7973
NSN 5925-01-018-4285
NSN 5855-00-494-9581
NSN 6130-01-278-9305
NSN 6220-01-657-0004
NSN 6145-00-201-1330
NSN 6240-01-275-4535