16401319 - Tweco MSH64H60 Spray Master 450A Gooseneck, 60 Degree Jacketed

Technical Overview of the Tweco MSH64H60 Gooseneck

The Tweco MSH64H60 (SKU: 1640-1319) is a premium OEM replacement gooseneck designed exclusively for the Tweco Spray Master 450A series of MIG welding guns. As a critical component in the welding circuit, the gooseneck—or conductor tube—serves as the conduit for welding wire, shielding gas, and welding current. This specific model features a 60-degree bend, which is the industry standard configuration for general fabrication, offering a balanced mix of reach and ergonomic comfort for the operator.

Constructed to meet "Heavy Duty" specifications, the MSH64H60 is rated for 450 Amperes, making it suitable for high-deposition welding processes including spray transfer and flux-cored applications. The tube is encased in a durable, high-dielectric jacket. This jacketing is essential for industrial environments, as it insulates the electrically live conductor tube from accidental contact with the workpiece or fixturing, thereby preventing arc-outs and potential equipment damage. The robust metal alloy core ensures efficient heat dissipation, maintaining lower operating temperatures during extended duty cycles.

Installation of the MSH64H60 maintains the structural integrity of the Spray Master gun. It interfaces precisely with the gun handle and the consumable front-end parts (diffuser, nozzle, and contact tip). Using genuine Tweco OEM parts guarantees that the gas flow path remains turbulent-free and that the electrical resistance at connection points is minimized. This attention to tolerance and material quality results in a stable arc, consistent wire feeding, and prolonged consumable life. For maintenance and repair operations (MRO), replacing a compromised gooseneck with this exact OEM part eliminates fitment variables and restores the gun to factory performance levels.