Tweco 1240-1881 Heavy Duty Mig Welding Nozzle

Product Description

The TWECO 1240-1881 is a heavy duty MIG welding nozzle from the Velocity2a series, designed for professional welders who demand reliable consumable performance in demanding production environments. This nozzle features a single-thread interface that reduces seizing and cross-threading by pairing brass threads on the nozzle body against heat-treated stainless steel threads on the gooseneck. The result is a no-tool replacement process that eliminates the thread-related failures common with standard MIG consumables. At 0.29 pounds and 2.32 inches in length, it is a compact, purpose-built replacement nozzle for MIG guns.

The 1240-1881 is suited for MIG welding applications in residential fabrication shops, light industrial environments, and heavy production settings where nozzle changeover speed and thread longevity are priorities. The fixed threaded design maintains a consistent flush relationship between the nozzle opening and the contact tip, which is critical for maintaining arc stability and consistent weld bead geometry. Licensed welders and weld technicians are the primary installers of this consumable.

Key Features

• Single-thread interface reduces seizing and cross-threading versus two- or three-thread MIG nozzle designs
• Heat-treated stainless steel gooseneck threads resist wear and deformation over extended service life
• Brass nozzle threads grip securely and resist loosening during operation
• Fixed threaded design maintains consistent flush relationship between nozzle opening and contact tip
• No-tool replacement process speeds consumable changeover on the wire
• Heavy duty construction rated for demanding production welding cycles

Compatibility

Designed as an OEM-style replacement nozzle for MIG welding guns compatible with the Tweco Velocity2a consumable system.

Installation Notes

MIG nozzle replacement is performed by weld technicians or experienced welders during scheduled consumable maintenance. Always power down the welding machine and allow the gun neck to cool completely before removing or installing nozzles. Inspect the gooseneck threads for spatter buildup before threading on the replacement nozzle. Do not overtighten — hand-snug is sufficient with the brass-to-stainless thread interface.

Technical Specifications

• Weight: 0.29 pounds
• Length: 2.32 inches
• Width: 1.13 inches
• Thread Interface: Brass nozzle threads against stainless steel gooseneck threads
• Design Type: Fixed Threaded
• Unit of Measure: Each
• Minimum Order Quantity: 2
• UPC: 608246434292

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1240-1881