CS6290NFF4 - Victor CutSkill Size 4 Propane Cutting Tip for Harris Torches

Technical Overview of the Victor CutSkill CS6290NFF4

The Victor CutSkill CS6290NFF4 is a precision-engineered replacement cutting tip designed to be fully compatible with Harris-style oxy-fuel torches, specifically those utilizing the 6290 seating system. This particular model is a Size 4 tip, configured for the NFF specification, which denotes its optimization for alternative fuel gases such as Propane and Natural Gas, rather than Acetylene. The 'NFF' designation also indicates a 'Heavy Preheat' design, characterized by a robust preheat flame pattern that facilitates the rapid heating of base materials, even when the surface condition is compromised by rust, scale, or primer.

Structurally, the CS6290NFF4 utilizes a two-piece design common to high-performance propane tips. It features a brass inner member with splined gas passages and a copper outer shell. This construction allows for efficient gas mixing and cooling, extending the service life of the consumable during prolonged high-heat applications. With a Size 4 orifice, this tip is rated for cutting mild steel ranging from approximately 3 inches (75mm) to 6 inches (150mm) in thickness, making it a heavy-duty consumable for structural and industrial fabrication. Users should ensure their regulator settings are adjusted to accommodate the higher oxygen volume requirements typical of propane cutting compared to acetylene.

As part of the Victor CutSkill series, this product bridges the gap between OEM pricing and aftermarket affordability without sacrificing the metallurgical quality required for consistent industrial performance. It is an essential inventory item for workshops operating Harris equipment on alternative fuel lines.