This is a 4.3-10 Female connector for 1/2" LDF4-50A, HL4RPV-50, and AL4RPV-50 cable by CommScope.
It is a straight connector with 50 ohm impedance. It has a ring flare attachment with self captivated silver plated center pin and a tri-metal plated body. It operates on frequency bands from 0 – 8800 MHz.
It is 3.17" long and 0.98" in diameter.