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 5975-01-531-1507
NSN 6650-01-197-4585
NSN 5950-00-306-0916
NSN 5960-00-665-5180
NSN 5996-01-565-0106
NSN 5985-00-107-2111
NSN 6645-01-147-5579
NSN 5930-01-538-2925
NSN 5895-01-495-8151
NSN 5930-00-837-6765
NSN 6105-00-811-8710
NSN 6145-01-232-9454