N-3400C - Bernard Centerfire 3/4 Inch Flush Copper Nozzle (10-Pack)

Bernard Centerfire N-3400C MIG Nozzle – 10 Pack

Maximize your welding efficiency with the Bernard N-3400C Centerfire Nozzle, available in a convenient package of 10. Designed to meet the rigorous demands of professional fabrication, this nozzle is a core component of the Bernard Centerfire system, which is celebrated for its simplicity and durability. The N-3400C features a large 3/4-inch orifice, providing a wide gas envelope that is essential for high-heat, high-deposition welding processes where porosity must be avoided at all costs.

The nozzle utilizes a "Flush" geometry, meaning the contact tip is positioned level with the nozzle exit. This is one of the most popular configurations for MIG welding because it offers a great middle ground between the deep reach of a recessed tip and the tight access of a protruding tip. With a flush nozzle, welders can easily gauge their contact-tip-to-work distance (CTWD), ensuring consistent arc characteristics and penetration. The copper construction is rugged and resists spatter adhesion better than brass alternatives, making it easier to clean and maintain over the course of a shift.

What truly sets the N-3400C apart is the Centerfire "drop-in" technology. There are no threads to cross or damage. The nozzle is held in place by a spatter shield (sold separately or part of the gun assembly), which also acts as a gas diffuser. This design ensures that the nozzle remains concentric with the contact tip for perfect gas flow alignment every time. Whether you are running a Bernard Q-Gun, S-Gun, or the newer BTB platform, these nozzles deliver the consistency and reliability required for code-quality welds.

Features at a Glance:

• Orifice Size: 3/4 inch (19mm) for heavy-duty shielding.
• Material: Heavy-wall copper for durability.
• System: Threadless Centerfire fitment.
• Quantity: Sold as a pack of 10.