Tweco 1260-1625 Mig Welding Nozzle 3/8 in Bore 250A

Product Description

The TWECO 1260-1625 is a thread-on MIG welding nozzle designed for use with the standard EL gas diffuser. It features a 3-piece construction with 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 0.375 inches with an outer diameter of 0.875 inches and an overall length of 3.183 inches. Rated for welding applications up to 250 amps, it delivers the electrical insulation required from the gas diffuser without needing a separate insulator. The part number is rolled and stamped on the external surface for quick identification in the field. Sold in a 2-pack. Licensed welders and MIG welding technicians are the primary installers.

This nozzle is suited for light to medium duty MIG welding applications up to 250 amps. The recessed contact tip relationship of 0.125 to 0.156 inches makes it appropriate for higher heat applications where longer electrical stick-out is required, as well as tack, spot, and stitch welding scenarios where the nozzle may contact the work piece. The nozzle insert is crimped in place, allowing it to slide over the metal spring that is part of the EL gas diffuser. This design is a practical fit for production welding environments, fabrication shops, and maintenance welding operations requiring consistent front-end performance.

Key Features

• 3-piece design: copper alloy housing, solid brass insert, and G7 silicone insulator — no additional insulator required
• Nozzle housing cut and formed from 122 DHP copper alloy tubing for durability under heat
• Recessed contact tip relationship of 0.125 to 0.156 inches for higher heat and contact-prone applications
• Nozzle insert crimped in place to slide over the metal spring on the EL gas diffuser
• Part number rolled and stamped on the exterior for fast field identification
• Threads onto standard EL gas diffusers; no adapter required

Compatibility

Designed to thread onto the standard EL gas diffuser. Compatible with MIG welding setups rated for light to medium duty applications up to 250 amps.

Installation Notes

Installation and replacement should be performed by a qualified welding technician. Power down and disconnect the welding machine before removing or installing front-end consumables. Thread the nozzle onto the EL gas diffuser by hand until snug; do not overtighten, as this may damage the insulator or insert. Inspect the nozzle insulator and insert for spatter buildup or wear as part of routine maintenance.

Technical Specifications

• Bore Diameter: 0.375 inches
• Outer Diameter: 0.875 inches
• Overall Length: 3.183 inches
• Recessed Tip Relationship: 0.125 to 0.156 inches
• Maximum Amperage: 250 A
• Housing Material: 122 DHP Copper Alloy
• Insert Material: Solid Brass
• Insulator Material: G7 Silicone
• Connection Type: Thread-On
• Package Quantity: 2 per pack
• Weight: 0.18 pounds

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1260-1625