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 6145-00-006-4954
NSN 5915-01-567-2741
NSN 5950-01-231-4230
NSN 5965-00-831-2134
NSN 6240-01-444-2227
NSN 5855-00-451-6155
NSN 5905-01-152-9951
NSN 5950-01-408-2461
NSN 6105-00-527-2193
NSN 6320-00-433-2773
NSN 4140-01-087-0359
NSN 6650-01-107-4295