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 5920-00-119-1406
NSN 7035-00-834-2090
NSN 6685-00-566-8673
NSN 5960-00-480-3490
NSN 6645-00-805-0066
NSN 5975-01-582-4858
NSN 5998-01-604-3436
NSN 4140-01-575-4376
NSN 5855-01-547-6918
NSN 4140-01-107-4597
NSN 6150-01-565-6006
NSN 6240-01-317-7924