Tweco 1250-1420 Welding Nozzle 5/8 Inch Bore Mig

Product Description

The TWECO 1250-1420 is a 3-piece MIG welding nozzle designed for the Tweco 25 Series (Weldskill 25CT) MIG gun. It features a 5/8-inch bore and a 2.2-inch length with a 1/8-inch tip recess. The nozzle housing is cut and formed from 122 DHP copper alloy tubing for superior conductivity and heat resistance. The nozzle insert is machined from solid brass with internal threads matched to the conductor tube. The nozzle insulator is made from G7 silicone material, providing reliable electrical insulation. The part number is roll-stamped on the outside surface for easy field identification.

The TWECO 1250-1420 is suited for heavy-duty MIG welding applications up to 500 amperes. Its tapered 3-piece design eliminates the need for a separate insulator, simplifying replacement in production welding environments, fabrication shops, and maintenance welding operations. Professional welders and welding technicians working with Tweco 25 Series MIG guns will find this a direct-fit replacement nozzle for high-amperage continuous welding cycles.

Key Features

• 3-piece design: 122 DHP copper alloy housing, solid brass insert, and G7 silicone insulator
• 5/8-inch bore for consistent shielding gas coverage at high amperage
• 2.2-inch nozzle length with 1/8-inch tip recess
• Tapered design eliminates the need for a separate insulator
• Part number roll-stamped on exterior for quick identification during consumable changes
• Rated for heavy-duty welding applications up to 500 amperes

Compatibility

Designed as a direct-fit replacement nozzle for Tweco 25 Series (Weldskill 25CT) MIG welding guns.

Installation Notes

Installation should be performed by a qualified welding technician or maintenance professional. Always power down the welding machine and allow the gun and nozzle to cool completely before removing or installing nozzle components. Thread the nozzle insert onto the conductor tube securely before attaching the nozzle housing to prevent arcing or poor shielding gas flow. Follow the MIG gun manufacturer's service instructions and applicable AWS safety guidelines during consumable replacement.

Technical Specifications

• Bore Diameter: 5/8 inches
• Nozzle Length: 2.2 inches
• Tip Recess: 1/8 inches
• Maximum Amperage: 500 amperes
• Nozzle Housing Material: 122 DHP Copper Alloy
• Nozzle Insert Material: Solid Brass
• Insulator Material: G7 Silicone
• Package Dimensions: 2.4 inches x 1.1 inches x 1.1 inches
• Weight: 0.19 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 2
• UPC: 608246058214

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1250-1420