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 5950-01-340-4580
NSN 5998-01-367-2144
NSN 5855-01-318-7663
NSN 6150-00-490-9346
NSN 6610-00-699-0714
NSN 5985-01-401-5387
NSN 6650-01-067-0132
NSN 5996-01-381-2876
NSN 6145-01-540-6177
NSN 5998-01-538-1227
NSN 5925-01-164-0837
NSN 6150-01-363-9828