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 6145-01-131-3818
NSN 5910-00-071-7710
NSN 6240-01-573-7036
NSN 5950-01-292-1130
NSN 5835-01-302-2745
NSN 6650-01-434-6434
NSN 6130-01-447-6760
NSN 5998-01-009-2845
NSN 5950-01-461-2619
NSN 6650-01-011-9093
NSN 5915-01-431-0774
NSN 5855-00-548-4742