Springfield Boat Kingpin Seat Base 169-1630001 | 7 X 7 Inch Stainless

Has a 1 1/8" OD (3/4" ID) pin in the center. Features a satin finish, and is rated as a ABYC H-31 B fishing seat base. Part Manufacturer: Springfield Marine. We're your port for thousands of hard to find boat parts, original manufacturer's parts and marine surplus.