11401245 - Tweco 14H-52 Heavy Duty Contact Tip for .052 Wire (Pack of 25)

Tweco 14H-52 Heavy Duty Contact Tip (.052") - OEM Quality

The Tweco 14H-52 (Stock No. 1140-1245) is a premium heavy-duty contact tip designed for industrial MIG welding applications utilizing 0.052-inch (1.3 mm) welding wire. As part of the renowned Tweco 14 Series, this contact tip is engineered to meet the rigorous demands of high-amperage welding environments found in heavy fabrication, structural steel, and manufacturing sectors. The "H" designation indicates a heavy-duty construction, characterized by a thicker wall diameter compared to standard tips, providing enhanced thermal mass and heat dissipation capabilities.

Manufactured from high-quality Copper Alloy 122, the 14H-52 ensures optimal electrical conductivity, which is critical for maintaining a stable arc and preventing micro-arcing within the tip. The bore is precision-drilled to a specific tolerance (typically 0.061" clearance for .052" wire) to allow for smooth wire feeding while maintaining sufficient electrical contact. This reduces the risk of burn-back and extends the service life of the consumable.

This contact tip features a standard 3/8"-24 UNF-2A thread, making it directly compatible with Tweco 54A, 52, and 52FN gas diffusers. It is a standard replacement part for Tweco Classic Series (No. 3, 4, 5, 6) and Spray Master Series MIG guns. With an overall length of 1.5 inches (38.1 mm) and an outside diameter of 0.375 inches (9.5 mm), it fits standard nozzle configurations seamlessly. MRO professionals rely on genuine Tweco OEM parts like the 14H-52 to maintain equipment reliability and weld quality standards.

Technical Specifications

• Part Number: 14H-52
• Stock Number: 1140-1245
• Wire Compatibility: 0.052" (1.3 mm)
• Thread Size: 3/8"-24 UNF
• Length: 1.5" (38.1 mm)
• Material: Copper Alloy 122