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 5895-01-523-6830
NSN 6240-01-083-2431
NSN 6650-01-533-0265
NSN 5905-01-212-9487
NSN 6135-00-477-8847
NSN 6645-01-184-5065
NSN 6620-01-515-6269
NSN 4140-00-499-8330
NSN 6645-01-600-2080
NSN 6220-00-944-1345
NSN 6610-00-558-0480
NSN 5985-00-164-1551