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 6610-00-248-1559
NSN 5835-00-876-4544
NSN 2925-00-239-6156
NSN 5930-01-417-1721
NSN 5998-00-840-6834
NSN 6150-00-798-7004
NSN 5915-01-618-6397
NSN 5950-00-375-6285
NSN 6240-01-030-3794
NSN 7035-00-803-3056
NSN 5905-00-899-1707
NSN 5915-01-428-5885