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 6685-00-621-5011
NSN 5975-01-120-2764
NSN 5999-01-040-3891
NSN 6220-01-275-7007
NSN 5895-01-300-4195
NSN 5855-00-256-5562
NSN 5999-01-634-0328
NSN 6320-01-056-1164
NSN 5945-01-651-6774
NSN 5905-01-507-1397
NSN 5996-01-412-2643
NSN 5935-01-443-3128