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 5950-01-287-4679
NSN 5905-01-067-4254
NSN 5895-00-707-6663
NSN 5930-00-156-0072
NSN 4140-01-396-0115
NSN 5965-01-236-6826
NSN 6240-01-087-4749
NSN 6610-01-041-0165
NSN 5910-01-366-3531
NSN 5835-01-608-4285
NSN 5910-01-428-3620
NSN 5996-01-287-4143