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 6145-00-542-7980
NSN 5905-01-599-5264
NSN 5950-00-822-3725
NSN 6320-01-578-6006
NSN 5990-00-462-9112
NSN 5935-01-288-0588
NSN 6650-01-528-0538
NSN 6645-00-072-9243
NSN 7035-01-462-5766
NSN 5945-01-441-7736
NSN 5999-01-329-8546
NSN 5990-00-022-8146