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 5975-00-817-1781
NSN 5945-01-367-1617
NSN 6650-00-256-9059
NSN 6620-01-616-0184
NSN 5985-01-371-9435
NSN 5835-01-375-8930
NSN 5996-00-525-1777
NSN 5965-00-405-3793
NSN 5975-00-476-5121
NSN 6150-01-122-8560
NSN 6610-01-227-7221
NSN 5905-00-511-4885