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 6685-01-331-7090
NSN 6240-01-240-1596
NSN 6610-01-590-5243
NSN 5945-01-035-7295
NSN 5935-01-130-4172
NSN 6645-01-147-5579
NSN 6620-01-587-1088
NSN 6650-00-266-6808
NSN 5990-01-525-2250
NSN 6150-00-433-4298
NSN 6220-01-428-3960
NSN 5910-01-496-8221