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 5999-01-200-1750
NSN 5925-00-629-1974
NSN 5915-01-495-3270
NSN 5925-01-157-9548
NSN 5950-01-589-8105
NSN 6130-01-359-9172
NSN 5998-01-068-5219
NSN 6620-00-663-8962
NSN 6620-01-578-6562
NSN 5935-00-597-2862
NSN 6685-00-760-6694
NSN 5855-01-376-0363