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 6610-01-219-8656
NSN 5915-01-279-8298
NSN 5935-00-444-9741
NSN 5990-00-733-2342
NSN 6320-01-506-9439
NSN 6130-01-615-9768
NSN 5910-01-202-8330
NSN 6150-01-389-7421
NSN 5985-01-423-8341
NSN 5950-01-024-4600
NSN 5905-01-598-3009
NSN 6320-01-054-3046