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 5920-00-883-0993
NSN 6220-01-100-2703
NSN 7035-00-238-3662
NSN 6220-00-274-6880
NSN 5998-00-725-5526
NSN 6105-01-346-0661
NSN 5950-01-281-2763
NSN 6145-00-106-0611
NSN 5915-01-443-7499
NSN 6320-00-242-3300
NSN 6320-01-311-6576
NSN 5905-01-122-9722