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 5905-01-212-6639
NSN 5925-01-395-1971
NSN 5915-00-071-3797
NSN 5998-01-008-9228
NSN 5905-01-282-0013
NSN 6685-01-401-5360
NSN 6145-01-256-9784
NSN 5855-01-447-4097
NSN 5895-01-562-0298
NSN 5935-01-571-9634
NSN 6240-01-271-6230
NSN 6645-00-942-1039