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 6685-01-020-2123
NSN 6135-01-329-7994
NSN 5998-01-609-6622
NSN 6320-00-588-2401
NSN 5855-01-491-0140
NSN 5960-00-518-3091
NSN 6110-01-648-5202
NSN 5895-01-037-9857
NSN 5835-01-258-5597
NSN 6645-00-514-4017
NSN 6320-01-085-8845
NSN 6145-00-978-8056