This is a straight, one-piece N‑type male connector (part number L4NM‑C, Version 2) designed for use with ½″ LDF4‑50A Heliax coaxial cable. It features a silver‑plated captivated inner contact and trimetal‑plated clamp-style outer conductor attachment, ensuring low insertion loss (~0.05 dB), 50 Ω impedance, and robust mechanical retention (~200 lbf). The connector is non‑pressurizable and built to withstand demanding RF and telecom environments. It was officially discontinued in 2008 and has since been replaced by improved models like the L4TNM‑PSA