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 5950-01-398-9557
NSN 6240-01-046-9424
NSN 5975-01-581-2006
NSN 6645-01-512-2220
NSN 5915-01-414-5153
NSN 5925-01-026-9649
NSN 5910-00-260-1406
NSN 6145-01-253-4027
NSN 5935-00-471-0099
NSN 5835-01-040-7190
NSN 5985-00-588-1435
NSN 5985-00-644-9008