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 5835-00-223-7235
NSN 5999-01-122-0520
NSN 4140-01-540-0550
NSN 7035-01-141-8076
NSN 6320-00-925-0558
NSN 5835-00-543-0282
NSN 5855-00-885-8452
NSN 5950-00-522-2432
NSN 6145-00-840-3789
NSN 6150-01-424-1530
NSN 5945-01-219-9624
NSN 5895-01-619-3795