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 6220-00-431-3742
NSN 5915-01-110-0724
NSN 6240-01-227-4178
NSN 5930-00-621-8882
NSN 5905-01-407-8724
NSN 6240-01-166-4517
NSN 5930-00-947-6880
NSN 5930-00-636-8888
NSN 6105-00-443-4663
NSN 5915-00-375-5000
NSN 5990-00-594-7291
NSN 5920-01-392-4407