The Tweco 24A-75 Adjustable MIG Nozzle (SKU: 1240-1734) is a premium consumable designed for industrial welding applications requiring robust performance and precise gas shielding. Part of the widely used Tweco 24 Series, this nozzle is engineered to fit Tweco No. 4 MIG guns (and compatible 400A-500A style guns). It features a substantial 3/4-inch (19.1 mm) bore, making it particularly suitable for high-amperage welding processes where maximum shielding gas coverage is critical to prevent porosity and ensure weld quality.
This nozzle utilizes an adjustable slip-on connection mechanism. It fits over the standard 34A insulator and 54A gas diffuser, allowing the welder to slide the nozzle forward or backward. This adjustability is essential for setting the correct contact tip recess (CTWD) or stick-out depending on the welding position and transfer mode (short circuit vs. spray transfer). The nozzle is machined from high-conductivity copper alloy, optimized to withstand the intense radiant heat of heavy-duty MIG welding while resisting spatter adhesion.
The 1240-1734 nozzle is a direct replacement for the standard 24A-75 nozzle found on many Tweco Spray Master and Classic 4 series guns. It is ideal for fabrication shops, heavy equipment manufacturing, and structural steel work. This package contains two (2) nozzles, providing a cost-effective solution for maintaining inventory of critical consumables.
| Additional Information |
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| Brand:Tweco |
| Item:Nozzle |
| Packaging Description:pack of 2 |
| Fits Which Model:N/A |
| Series:24 Series |
| Bore Size:3/4" (19.1 mm) |
| Nozzle Style:Adjustable, Slip-On |
| Material:Copper Alloy |
| Compatible Gun Series:Tweco #4, Tweco Classic 4, Tweco Spray Master 450 |
| Part Number:24A-75, 1240-1734 |
