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 7035-01-440-8877
NSN 5835-01-138-8622
NSN 6220-00-308-9728
NSN 5975-01-059-7374
NSN 5990-01-141-3562
NSN 6135-01-388-2581
NSN 6240-01-495-8756
NSN 6220-01-220-8088
NSN 5990-00-910-2415
NSN 6220-00-032-3340
NSN 5925-00-647-3469
NSN 6220-00-060-8123