Remke 304AD0033P Single Key Micro-Link Receptacle, Female, 4 pole, #22AWG, 1M, 1/2 IN NPT
https://nsiindustries.com/product/single-key-micro-link-receptacle-female-4-pole-22awg-1m-1-2-npt/
Single Key Micro-Link Receptacle, Female, 4 pole, #22AWG, 1M, 1/2″ NPT