{"product_id":"tweco-1240-1855-mig-welding-nozzle-5-8-inch-bore","title":"Tweco 1240-1855 Mig Welding Nozzle 5\/8 Inch Bore","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TWECO 1240-1855 is a medium-duty MIG welding nozzle from the Velocity series, designed to simplify consumable management on MIG welding guns. It features a 5\/8-inch bore and a threaded attachment system that reduces the total number of thread sets compared to standard MIG nozzles. The design pairs brass threads on the nozzle body against heat-treated stainless steel threads on the gooseneck. This soft-against-hard thread combination resists seizing and cross-threading, extending service life and reducing downtime during nozzle changes. The part ships as a single unit and weighs 0.17 pounds.\u003c\/p\u003e\u003cp\u003eThis nozzle is suited for medium-duty MIG welding applications in fabrication shops, manufacturing environments, and field repair work. It is intended for use with compatible Tweco Velocity MIG gun bodies and goosenecks that accept threaded nozzle connections. The fixed-threaded design maintains a consistent flushness relationship between the nozzle opening and the contact tip, which supports repeatable arc positioning. Welders and maintenance technicians working with solid wire or flux-core processes in a variety of base metal applications will find the tool-free installation and removal straightforward during scheduled consumable changes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5\/8-inch bore sized for medium-duty MIG welding output ranges\u003c\/li\u003e\n\u003cli\u003eSingle thread-set design reduces seizing, cross-threading, and installation complexity versus standard two- or three-thread consumable systems\u003c\/li\u003e\n\u003cli\u003eBrass nozzle threads mate against heat-treated stainless steel gooseneck threads for extended thread life\u003c\/li\u003e\n\u003cli\u003eFixed threaded style maintains consistent flushness between nozzle opening and contact tip\u003c\/li\u003e\n\u003cli\u003eTool-free nozzle replacement reduces changeover time at the gun\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Tweco Velocity series MIG gun bodies and goosenecks that accept threaded medium-duty nozzle connections. Confirm gooseneck thread compatibility before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMIG nozzle replacement is typically performed by a welder or maintenance technician with the welding machine powered down and the wire feeder disabled. Allow the gun body to cool fully before handling consumables to avoid burns. Hand-tighten the nozzle onto the gooseneck threads — do not use pliers or wrenches on the nozzle body, as overtightening can deform the brass threads. Inspect the contact tip and liner condition whenever the nozzle is changed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 5\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuty Rating\u003c\/strong\u003e: Medium Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNozzle Style\u003c\/strong\u003e: Fixed Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Material (Nozzle)\u003c\/strong\u003e: Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Material (Gooseneck)\u003c\/strong\u003e: Heat-Treated Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.17 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 608246434223\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: TWECO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1240-1855\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51342702477618,"sku":"1240-1855","price":51.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310545999.jpg?v=1782004041","url":"https:\/\/voomisupply.com\/products\/tweco-1240-1855-mig-welding-nozzle-5-8-inch-bore","provider":"Voomi Supply","version":"1.0","type":"link"}