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 5990-00-948-9245
NSN 5920-01-161-8120
NSN 5835-00-647-2104
NSN 6105-00-295-0740
NSN 5930-01-031-7929
NSN 6220-00-875-6586
NSN 5960-01-075-7732
NSN 5910-00-952-2172
NSN 6645-01-449-1824
NSN 5910-00-985-1419
NSN 5950-01-168-8023
NSN 5990-01-411-5930