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 6145-01-605-4175
NSN 6220-01-117-1793
NSN 6135-01-448-2823
NSN 5996-00-145-8174
NSN 5975-01-011-3848
NSN 5855-01-180-5369
NSN 6685-00-758-0566
NSN 5855-01-513-9601
NSN 6145-01-395-1584
NSN 6240-01-145-3931
NSN 6240-00-806-4554
NSN 6320-00-036-3688