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 6145-00-284-1514
NSN 5855-00-221-9435
NSN 5975-00-226-8429
NSN 5975-00-490-6086
NSN 5855-01-388-4345
NSN 6320-01-215-2284
NSN 5925-01-304-0253
NSN 5990-00-806-3556
NSN 5895-01-471-5569
NSN 5915-01-349-9839
NSN 5910-01-100-4622
NSN 5920-01-189-8047