{"product_id":"tweco-1240-1237-mig-welding-nozzle-3-4-in-bore-450-amp","title":"Tweco 1240-1237 Mig Welding Nozzle 3\/4 in Bore 450 Amp","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TWECO 1240-1237 is a heavy-duty MIG welding nozzle engineered for demanding welding environments up to 450 amps. It features a 3\/4-inch bore and measures 3.164 inches in length with a 1.117-inch outer diameter. The nozzle is constructed from 122 DHP copper alloy for reliable conductivity and heat resistance. A flush contact tip relationship of 0.062 inches positions the contact tip closer to the work piece, making this nozzle well suited for applications requiring shorter electrical stick-out. Installed by welding technicians and fabricators, it is designed for use with standard gas diffusers and is sold in a pack of two.\u003c\/p\u003e\u003cp\u003eThis nozzle is intended for medium to heavy-duty MIG welding applications requiring consistent gas shielding and extended consumable life. The flush tip configuration is typically selected when shorter electrical stick-out is needed, which can result in tighter arc lengths and brings the tip closer to the work piece. It is appropriate for production welding environments where nozzle identification speed and reliability of front-end components are priorities. The part number is rolled and stamped on the outer surface for quick identification during high-volume service situations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/4-inch bore size compatible with standard gas diffusers\u003c\/li\u003e\n\u003cli\u003eRated for welding applications up to 450 amps\u003c\/li\u003e\n\u003cli\u003e3-piece design: copper alloy nozzle housing, solid brass machined insert, and silicone nozzle insulator — no additional insulator required\u003c\/li\u003e\n\u003cli\u003eNozzle insert crimped in place to slide over the metal spring of the gas diffuser\u003c\/li\u003e\n\u003cli\u003eSilicone G7 material insulator provides electrical insulation from the gas diffuser\u003c\/li\u003e\n\u003cli\u003ePart number rolled and stamped on outer surface for fast field identification\u003c\/li\u003e\n\u003cli\u003eSold as a pack of two\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a heavy-duty OEM-style replacement nozzle for use with standard MIG gun gas diffusers rated for medium to heavy-duty welding applications up to 450 amps.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and replacement of MIG welding nozzles should be performed by a qualified welding technician with the welding machine powered down and the gun cool to the touch. Ensure the gas diffuser spring is intact before sliding the nozzle into position. Follow the gun manufacturer's front-end assembly sequence and applicable AWS or shop safety guidelines when servicing consumable components.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNozzle Length\u003c\/strong\u003e: 3.164 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 1.117 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 450 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlush Contact Tip Relationship\u003c\/strong\u003e: 0.062 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNozzle Housing Material\u003c\/strong\u003e: 122 DHP Copper Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNozzle Insert Material\u003c\/strong\u003e: Solid Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulator Material\u003c\/strong\u003e: G7 Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 2 per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.27 pounds\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: 1240-1237\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51346621989170,"sku":"1240-1237","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310545974.jpg?v=1782085706","url":"https:\/\/voomisupply.com\/products\/tweco-1240-1237-mig-welding-nozzle-3-4-in-bore-450-amp","provider":"Voomi Supply","version":"1.0","type":"link"}