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 5990-00-275-7819
NSN 5935-01-329-8292
NSN 6240-01-173-7809
NSN 5950-01-279-7584
NSN 2925-00-827-2326
NSN 5950-01-582-5575
NSN 5905-01-242-7247
NSN 5990-01-443-2931
NSN 5895-00-838-2649
NSN 6240-01-103-5300
NSN 6645-00-318-5721
NSN 5920-01-186-3953