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 5985-01-112-9297
NSN 6220-01-125-0468
NSN 6685-01-025-6765
NSN 5920-00-243-3788
NSN 6105-00-901-8188
NSN 6320-01-181-9474
NSN 5835-01-053-6209
NSN 5945-01-155-2938
NSN 6620-00-128-7980
NSN 6145-01-032-4557
NSN 4140-01-502-1370
NSN 6110-01-323-3408