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 5996-01-252-8275
NSN 5905-01-543-6371
NSN 4140-00-252-0879
NSN 5920-00-949-3468
NSN 6130-00-647-8471
NSN 6135-00-471-5356
NSN 5910-00-517-1080
NSN 5915-01-122-9107
NSN 5930-01-175-8051
NSN 6145-01-313-9869
NSN 6685-01-392-0059
NSN 6240-00-136-7168