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 5855-01-258-5161
NSN 6685-00-715-1795
NSN 5950-00-332-2035
NSN 6620-00-593-5313
NSN 5985-01-436-4163
NSN 6135-01-357-0621
NSN 4140-01-651-8403
NSN 5910-00-084-0275
NSN 5999-00-935-2335
NSN 6110-01-099-6893
NSN 6145-00-010-5135
NSN 5915-01-377-5033