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 5910-01-633-9963
NSN 5990-00-689-5736
NSN 6220-00-983-1415
NSN 6620-00-189-0967
NSN 6220-01-190-8605
NSN 5998-01-389-3157
NSN 5996-01-444-1488
NSN 6105-01-151-4864
NSN 6145-00-432-7431
NSN 6645-01-268-6723
NSN 5920-00-167-2700
NSN 5985-00-187-0538