Crankshaft Hand Crank Nut for International and IH Farmall 140, 240, 330, 340, 504, and 2504 Tractors.
Used also on other IH equipment with 4 cylinder C-123 engine and has hand crank starting capability.
This is the special nut that is located on the front of the engine crankshaft that the hand crank engages in to start engine.
Case IH Crankshaft Hand Crank Nut part number 368569R1.