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 5990-01-154-3859
NSN 5910-00-010-9853
NSN 5985-01-202-7919
NSN 5925-01-250-3925
NSN 5996-00-316-5115
NSN 6110-01-312-8541
NSN 6240-00-364-0850
NSN 6650-00-299-9681
NSN 5930-01-100-7974
NSN 5960-00-081-9255
NSN 5935-01-658-9661
NSN 5945-01-576-8492