Tweco 1260-1627 Mig Welding Nozzle 5/8 Inch Bore 250A

Product Description

The TWECO 1260-1627 is a coarse-threaded MIG welding nozzle designed for use with standard EL gas diffusers in light to medium duty welding applications rated up to 250 amps. It features a 3-piece construction consisting of a nozzle housing cut and formed from 122 DHP copper alloy tubing, a nozzle insert machined from solid brass, and a nozzle insulator constructed from G7 silicone material. The bore measures 0.625 inches with an outer diameter of 0.875 inches and an overall length of 3.183 inches. The part number is roll-stamped on the external surface for quick field identification. Sold as a pack of 2.

This nozzle is suited for light to medium duty MIG welding operations requiring reliable electrical insulation between the nozzle and gas diffuser. The recessed contact tip relationship of 0.125 to 0.156 inches makes it a practical choice for higher heat applications, tack welding, spot welding, and stitch welding where the nozzle may contact the workpiece. The thread-on design mates directly with standard EL series gas diffusers, making it a straightforward drop-in replacement in compatible MIG gun setups. Professional welders and fabrication shops performing work up to 250 A will find this nozzle fits established torch configurations without modification.

Key Features

• 3-piece design eliminates the need for a separate insulator
• Nozzle housing formed from 122 DHP copper alloy tubing for durability and conductivity
• Brass nozzle insert with internally machined threads to match EL gas diffuser
• G7 silicone nozzle insulator provides electrical insulation from the gas diffuser
• Recessed tip relationship of 0.125 to 0.156 inches suits high-heat and contact welding scenarios
• Part number roll-stamped on exterior for easy identification during inventory and service

Compatibility

Designed to thread onto standard EL series gas diffusers. Compatible with light to medium duty MIG welding guns rated up to 250 amps.

Installation Notes

Installation is performed by qualified welders or MIG gun technicians. Always power down the welding machine and allow the torch to cool completely before servicing front-end consumables. Thread the nozzle onto the EL gas diffuser by hand until snug, taking care not to cross-thread the brass insert. Inspect the nozzle insulator for cracking or spatter buildup regularly, as insulator damage can cause unwanted arcing to the gas diffuser.

Technical Specifications

• Bore Diameter: 0.625 inches
• Outer Diameter: 0.875 inches
• Overall Length: 3.183 inches
• Maximum Amperage: 250 A
• Contact Tip Recess: 0.125 to 0.156 inches
• Nozzle Housing Material: 122 DHP Copper Alloy
• Nozzle Insert Material: Solid Brass
• Insulator Material: G7 Silicone
• Connection Type: Coarse Thread-On
• Package Quantity: 2 per pack
• Weight: 0.18 pounds

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1260-1627