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 5998-01-065-0860
NSN 5996-01-642-5575
NSN 5990-00-698-3963
NSN 5990-00-927-3127
NSN 6240-01-224-6941
NSN 5960-00-055-8010
NSN 6320-01-585-8468
NSN 6320-01-541-7585
NSN 5965-01-029-5222
NSN 5920-01-249-6664
NSN 6135-01-190-2628
NSN 5920-01-602-3351