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 5965-01-231-9125
NSN 6650-01-424-3947
NSN 6320-01-504-3948
NSN 4140-01-375-0782
NSN 6620-01-381-6225
NSN 6685-01-220-6272
NSN 5950-00-525-2931
NSN 6240-01-369-0295
NSN 5930-01-274-8943
NSN 2925-00-233-5644
NSN 5975-01-193-1819
NSN 5925-01-383-1463