AM-113 | Crank Arm, 1/2" D, For Damper or Splined Actuator Shafts, Zinc Plated SKU: AM-113 Parent Item Parent Item - Additional Cost Has Item Option Details AM-113 | Crank Arm, 1/2" D, For Damper or Splined Actuator Shafts, Zinc Plated DetailsBackDetailsAM-113 | Crank Arm, 1/2" D, For Damper or Splined Actuator Shafts, Zinc Plated