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 5985-01-472-2326
NSN 5920-01-367-9281
NSN 6610-01-367-1640
NSN 6610-01-592-5945
NSN 2925-00-238-1668
NSN 5975-00-470-7527
NSN 6620-01-327-1597
NSN 5990-00-764-7487
NSN 6240-01-339-5100
NSN 6130-00-170-4844
NSN 6645-01-438-4118
NSN 5950-01-246-3984