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 6320-00-433-2773
NSN 5935-01-098-7267
NSN 5920-01-163-0551
NSN 6650-01-444-1212
NSN 6110-01-445-1071
NSN 5930-00-827-1737
NSN 6610-01-070-0230
NSN 6650-00-035-9297
NSN 5990-01-254-2936
NSN 6650-01-621-9250
NSN 6145-01-431-2262
NSN 6145-01-101-2063