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 6610-00-618-6192
NSN 5855-01-180-5369
NSN 6130-01-356-6909
NSN 6650-01-310-3437
NSN 6150-00-233-6356
NSN 5920-00-473-0563
NSN 2925-00-964-7128
NSN 5915-00-905-1590
NSN 5835-01-319-4636
NSN 6610-01-461-8180
NSN 5996-01-462-7167
NSN 5920-01-530-5504