Flange washers for 2-1/2" bolts t:0.81 (in)

Belleville washer for flanges with 2-1/2" bolt size, with an OD of 4.482 in, an ID of 2.529 in, and a thickness t of 0.81 in. Made from 17-7PH steel, H-13 steel, or Inconel, among others.