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 5950-01-142-3389
NSN 5990-00-434-9348
NSN 5950-00-234-7544
NSN 5915-01-029-4128
NSN 6685-01-406-2919
NSN 5960-00-315-0358
NSN 5990-01-586-8202
NSN 5835-01-157-5886
NSN 4140-01-198-5652
NSN 6685-01-364-1858
NSN 5990-01-423-8189
NSN 6135-00-898-6996