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 5998-01-384-2990
NSN 5920-01-208-7707
NSN 6320-01-281-6028
NSN 5910-00-548-1739
NSN 5835-01-115-6067
NSN 5905-01-110-1884
NSN 6610-01-587-1803
NSN 5895-01-412-9870
NSN 5915-00-893-0767
NSN 6135-00-461-3590
NSN 6620-01-125-3932
NSN 2925-01-259-7092