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 5915-01-601-4993
NSN 2925-00-087-2465
NSN 5915-01-442-2934
NSN 6610-00-509-0887
NSN 6685-00-997-6372
NSN 6685-00-113-8949
NSN 6240-00-809-4977
NSN 5835-00-393-1996
NSN 2925-01-628-4219
NSN 6320-00-701-0437
NSN 6685-01-039-6411
NSN 5996-00-009-9343