KP2742-1-38F - Lincoln Magnum PRO 350A MIG Nozzle 3/8-inch Flush Thread-On

Premium Lincoln Electric Consumables

The Lincoln Electric KP2742-1-38F is a high-performance thread-on gas nozzle designed specifically for the Magnum® PRO 350A series of MIG welding guns. Engineered to meet the rigorous demands of industrial welding, this nozzle ensures consistent gas coverage and reliable arc performance. As a critical component of the front-end consumable system, it plays a vital role in directing shielding gas over the weld pool, protecting it from atmospheric contamination and ensuring high-quality weld deposits.

This particular model features a 3/8-inch (9.5 mm) inner diameter, which is ideal for applications requiring a focused gas stream or access to tighter joints. The "Flush" designation indicates that the contact tip sits flush with the end of the nozzle (specifically 1/8 inch or 3.2 mm flush relative to the nozzle edge in this specific configuration context), providing excellent visibility of the arc and weld puddle while maintaining adequate gas shielding. This balance makes it a versatile choice for various welding positions and joint configurations.

Durability is a key focus of the Magnum PRO line. The KP2742-1-38F is constructed with premium materials and finished with a nickel plating. This plating is essential for professional welders as it significantly reduces the adhesion of weld spatter. Less spatter buildup means less downtime spent cleaning the nozzle and longer intervals between replacements. Additionally, the nozzle utilizes a thread-on connection mechanism. Unlike slip-on nozzles that can become loose over time due to thermal expansion, the threaded design ensures a secure, concentric fit that maintains proper alignment with the contact tip.

Whether you are fabricating structural steel, working in automotive repair, or performing general maintenance, using genuine Lincoln Electric consumables like the KP2742-1-38F ensures your equipment operates at peak efficiency. It is compatible with wire sizes ranging from .035 to 5/64 inches, making it adaptable to a wide range of welding procedures.