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 5998-01-623-7268
NSN 7035-01-144-6408
NSN 6650-00-891-9850
NSN 5950-00-448-0906
NSN 6145-01-634-0388
NSN 6650-00-674-1240
NSN 6220-00-880-3181
NSN 5930-01-533-1521
NSN 6220-01-566-9880
NSN 5895-01-338-6207
NSN 6135-01-339-4695
NSN 6610-00-304-6961