While the 3/4" threading may match

Optimized Flow Performance: A 7

High-Flow Capacity: Equipped with 3/4" NPT gas valve ports to support high-efficiency furnaces and light commercial rooftop units

you can easily adapt it for 4-20 mA proportional control by adding a field-furnished 500-ohm resistor across the input terminals

Carrier AW01DA053 Key 323055-751 While the 3/4" threading mayThe Carrier AW01DA053 Key is a specific OEM replacement shaft key designed for heavy duty HVACR applications, ensuring the mechanical integrity of blower wheels and fan motors. This 1. 5 inch square key is engineered to the precise tolerances required for Carrier, Bryant, and Payne packaged units and split systems. Its robust metal construction provides the necessary shear strength to maintain a secure connection between the drive shaft and the hub,