The LET-LOK® straight connector with external NPT thread is a high-performance solution designed for inch tubing applications in demanding industries such as chemical processing, petrochemicals, pharmaceuticals, energy, nuclear power, and process engineering. Manufactured from durable AISI 316 stainless steel, it ensures exceptional resistance to corrosion and long-term reliability even in the most challenging operating environments. The connector’s working pressure capability is precisely defined by the tubing’s outer diameter and wall thickness, guaranteeing safe and efficient performance tailored to specific system requirements. For specialized applications, it is also available in a full-bore version, ideal for thermocouple installation, with the bore diameter reamed to match the tubing size and identified with the suffix …-TC. Engineered for precision, durability, and versatility, this connector provides a secure and leak-tight connection, making it an essential component for critical installations where safety, efficiency, and uncompromising quality are paramount.