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 5920-01-513-1442
NSN 6240-00-571-8449
NSN 5935-00-153-2113
NSN 6685-01-364-1025
NSN 5925-00-954-3212
NSN 6135-00-412-1687
NSN 5990-00-754-2842
NSN 5930-01-469-9273
NSN 5835-01-412-0344
NSN 7035-00-803-3056
NSN 5965-01-562-0811
NSN 5895-01-391-9753