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 6110-00-788-8865
NSN 6110-01-603-9227
NSN 5945-00-239-7172
NSN 6320-00-400-8042
NSN 5975-01-174-1714
NSN 6620-01-562-3862
NSN 5998-01-105-7431
NSN 5855-01-514-9857
NSN 5935-01-048-1188
NSN 6110-01-416-1748
NSN 5999-00-146-5581
NSN 5990-01-138-8981