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 6650-01-017-0980
NSN 6645-01-417-4332
NSN 6685-00-326-5969
NSN 5915-01-563-1323
NSN 6150-01-016-9688
NSN 5975-01-132-7517
NSN 6220-00-106-4693
NSN 6110-00-402-7637
NSN 5920-01-586-3715
NSN 5920-01-387-9972
NSN 5998-01-123-8753
NSN 5935-00-917-0125