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 6150-01-602-8618
NSN 5895-01-256-6112
NSN 5996-01-520-8412
NSN 6150-00-096-6477
NSN 6610-00-134-2260
NSN 5895-00-373-2743
NSN 5910-01-290-7720
NSN 6110-00-585-8920
NSN 7035-01-167-2241
NSN 6620-01-314-3635
NSN 5855-01-132-5139
NSN 5855-01-121-8862