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 6685-01-566-6498
NSN 5950-00-992-7264
NSN 4140-01-044-8808
NSN 6650-01-601-0381
NSN 2925-00-233-5644
NSN 5999-01-489-6139
NSN 6220-00-004-3685
NSN 5905-01-463-9263
NSN 5945-01-391-5586
NSN 5996-01-339-7539
NSN 6620-00-199-8734
NSN 6240-01-513-2186