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 6220-00-110-8921
NSN 6685-01-352-5665
NSN 6320-00-242-3300
NSN 5915-01-608-4816
NSN 5950-01-037-6252
NSN 5960-01-443-3067
NSN 6685-01-320-2549
NSN 6220-01-555-8332
NSN 5895-00-724-5347
NSN 5855-00-688-9954
NSN 6685-01-205-3834
NSN 5996-01-379-7978