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 5930-01-283-0222
NSN 5920-00-518-0839
NSN 5915-01-248-3332
NSN 5985-00-917-5666
NSN 6650-01-620-2026
NSN 5835-01-574-0080
NSN 5950-01-411-5950
NSN 6150-01-335-3449
NSN 6220-01-067-8142
NSN 6135-01-604-8739
NSN 4140-00-517-7902
NSN 4140-01-372-3976