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 5905-00-378-3742
NSN 6110-01-154-3607
NSN 5945-01-457-3078
NSN 5895-01-029-5471
NSN 6220-00-476-1461
NSN 6240-01-050-5124
NSN 6650-00-717-8913
NSN 4140-00-269-7941
NSN 6145-01-158-6794
NSN 5950-01-589-6020
NSN 6685-01-046-4731
NSN 6150-01-183-9334