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 5950-00-649-5948
NSN 5985-00-630-8977
NSN 5985-01-130-8044
NSN 5910-01-090-1034
NSN 7035-01-456-8149
NSN 5925-00-411-0843
NSN 5990-01-595-9441
NSN 6145-01-086-5725
NSN 6645-01-340-7354
NSN 5930-01-490-4900
NSN 5835-01-538-8080
NSN 6220-01-332-7793