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 5999-01-247-6536
NSN 5905-00-434-2211
NSN 4140-00-929-3974
NSN 5905-01-599-0069
NSN 6650-00-349-6030
NSN 6620-01-418-7562
NSN 5915-01-540-9501
NSN 7035-01-559-2440
NSN 6610-01-275-0119
NSN 7035-01-040-3561
NSN 6240-00-461-1451
NSN 5996-01-459-8590