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 5895-01-400-2663
NSN 6685-00-898-3167
NSN 6650-01-366-4663
NSN 5905-00-142-1651
NSN 5998-01-277-7777
NSN 5999-01-128-1414
NSN 5965-01-205-6249
NSN 6685-00-229-7350
NSN 5930-00-141-9016
NSN 5960-01-056-4982
NSN 5910-00-952-4221
NSN 4140-00-103-2449