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 6620-00-982-6855
NSN 5950-00-163-4296
NSN 6240-01-083-6580
NSN 5975-01-457-3203
NSN 6135-00-455-2425
NSN 5996-01-197-7005
NSN 5915-01-494-9550
NSN 5895-01-461-8287
NSN 5905-01-273-4101
NSN 5950-00-493-5777
NSN 6105-01-210-6542
NSN 2925-01-411-4666