The IH attachment model numbers and production years are listed below that use bushing part number PO1818:
Case IH Cultivator Toolbar Clamp - Cuff part number 1846BX
Outside diameter of plate is 6-15/16" inches
34-400 - INTERNATIONAL HARVESTER FERTILIZER UNIT (1/55-12/58)
Massey Harris Seal part number 353079X1
IH Planter Hopper Round Corn 24 Cell Seed Plate, C150-24, FREE SHIP The IH attachment model numbers24 Cell Round Corn Seed Plate for International Harvester and McCormick Planter Hoppers for International and IH Farmall 140, 130, Super A, 100, Cub, and Other Tractor Models. Seed Plate for use with Combination (with corn and bean bottom) and Richmond Seed Hoppers. IH aftermarket Lincoln Ag. plastic seed plate part number C150 24. Cell dimensions are length 34 64", depth 18 64", and thickness 20 64" inches. Good usable condition with no cracks. Seed