{"product_id":"tweco-1260-1657-mig-nozzle-5-8-inch-bore-200a-heavy-duty","title":"Tweco 1260-1657 Mig Nozzle 5\/8 Inch Bore 200A Heavy Duty","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TWECO 1260-1657 is a heavy-duty coarse-threaded copper MIG welding nozzle designed for use with standard EL series gas diffusers. It features a 5\/8 inch (0.625 inch) bore and an overall length of 3.383 inches with a 0.97 inch OD. Rated for welding applications up to 200 amps, this nozzle uses a 3-piece construction — a nozzle housing cut and formed from 122 DHP copper alloy tubing, a solid brass nozzle insert with machined internal threads, and a G7 silicone nozzle insulator that provides electrical isolation from the gas diffuser. The part number is roll-stamped on the exterior for quick identification in the field. Sold in a pack of 2.\u003c\/p\u003e\n\u003cp\u003eThis nozzle is suited for medium to heavy-duty MIG welding in both fabrication and maintenance repair environments. The recessed contact tip relationship of 0.125 to 0.156 inches makes it well-suited 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. It threads directly onto standard EL series gas diffusers, making it a straightforward drop-in replacement in those torch configurations. The copper and brass construction supports consistent heat dissipation during extended welding cycles.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/8 inch bore with 3.383 inch length and 0.97 inch OD for medium to heavy-duty welding up to 200A\u003c\/li\u003e\n  \u003cli\u003e3-piece design eliminates the need for an additional insulator\u003c\/li\u003e\n  \u003cli\u003eNozzle housing formed from 122 DHP copper alloy tubing for dimensional stability and efficient heat dissipation\u003c\/li\u003e\n  \u003cli\u003eSolid brass nozzle insert with machined internal threads to match the gas diffuser\u003c\/li\u003e\n  \u003cli\u003eG7 silicone nozzle insulator provides required electrical isolation from the gas diffuser\u003c\/li\u003e\n  \u003cli\u003ePart number roll-stamped on exterior surface for fast field identification\u003c\/li\u003e\n  \u003cli\u003eThreads onto standard EL series gas diffusers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned to thread onto standard EL series gas diffusers. Compatible with MIG torch setups requiring a coarse-threaded copper nozzle with a 5\/8 inch bore in medium to heavy-duty welding configurations up to 200 amps.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified welding technicians or maintenance personnel. Disconnect and de-energize the welding system before replacing front-end consumables. Thread the nozzle onto the EL gas diffuser by hand until snug — do not overtighten, as this can damage the brass insert or silicone insulator. Inspect the nozzle insulator for cracking or spatter buildup during routine maintenance, as degraded insulation can cause diffuser arcing and unplanned downtime.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Size\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNozzle Length\u003c\/strong\u003e: 3.383 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.97 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e: 200 amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecessed Tip Relationship\u003c\/strong\u003e: 0.125 to 0.156 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material\u003c\/strong\u003e: 122 DHP copper alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert 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\u003eThread Type\u003c\/strong\u003e: Coarse thread\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: 0.38 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 608246139388\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 1260-1657\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51346183520562,"sku":"1260-1657","price":41.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310546044.jpg?v=1782073223","url":"https:\/\/voomisupply.com\/products\/tweco-1260-1657-mig-nozzle-5-8-inch-bore-200a-heavy-duty","provider":"Voomi Supply","version":"1.0","type":"link"}