1.890 center to center between holes
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: Washers other than lock washers, iron or steel
NSN 5985-01-143-3798
NSN 5910-01-558-9720
NSN 6650-01-180-9160
NSN 6130-01-386-5852
NSN 5935-01-384-4594
NSN 6145-00-027-9852
NSN 5925-00-915-1204
NSN 5985-01-111-6409
NSN 5998-00-192-4017
NSN 6240-00-559-3625
NSN 5925-01-567-1039
NSN 5910-00-339-2198