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 5935-01-255-3938
NSN 6645-01-157-4199
NSN 6610-01-416-2738
NSN 5975-01-029-4879
NSN 5985-00-866-6470
NSN 5930-01-592-1167
NSN 6610-01-315-7002
NSN 6135-00-203-9645
NSN 5905-01-599-1720
NSN 5930-01-372-5389
NSN 6240-01-423-1335
NSN 6645-01-080-6052