NST-3818B - Bernard Centerfire Tapered Nozzle 3/8" Bore 1/8" Recess

Industrial Precision with Bernard Centerfire Technology

The Bernard Centerfire Tapered MIG Nozzle NST-3818B is a premium consumable designed to enhance the performance and longevity of your MIG welding operations. Engineered specifically for the industrial environment, this nozzle is compatible with Bernard Q-Gun, BTB (Best of the Best), S-Gun, and Clean Air MIG gun platforms. It is an essential component of the Centerfire consumable system, known for its ease of use and superior arc characteristics.

Constructed from high-quality brass, the NST-3818B is built to withstand the intense heat and physical demands of heavy-duty fabrication. The nozzle features a 3/8-inch bore, which provides a focused gas envelope ideal for specific welding applications where precision shielding is required. The 1/8-inch recessed tip relationship ensures proper wire stick-out and helps prevent contact tip burn-back, a common issue in high-amperage welding.

Optimized Gas Flow and Protection

One of the standout features of the NST-3818B is its built-in spatter shield. This integral component serves a dual purpose: it protects the gas diffuser from molten spatter accumulation and acts as a flow straightener. By smoothing out the shielding gas turbulence, the nozzle ensures a laminar flow that significantly reduces the risk of weld oxidation and porosity. This results in cleaner welds and less post-weld cleanup.

Designed for Accessibility

The tapered geometry of this nozzle is specifically engineered to allow welders to access tight spaces, corners, and complex joint configurations that standard cylindrical nozzles cannot reach. Despite its slim profile, it maintains a solid, concentric relationship with the contact tip, ensuring the arc remains centered even after rigorous use. The threaded connection allows for secure alignment without the need for tools, facilitating quick changeovers and reducing downtime on the production floor.

• System Compatibility: Works seamlessly with DS-1 gas diffusers and TT series tapered contact tips.
• Durability: Heavy-wall brass construction resists deformation and heat damage.
• Efficiency: Drop-in design principles of the Centerfire system maximize arc time.