{"product_id":"tweco-1140-1103-mig-contact-tip-0-040-inch-25-pack","title":"Tweco 1140-1103 Mig Contact Tip 0.040 Inch 25 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TWECO 1140-1103 is a 14 Series standard-duty MIG contact tip designed for wire feeders running 0.040-inch diameter wire. Built from extruded or gun-drilled 122 DHP copper alloy and machined from copper alloy tubing, it delivers consistent inside diameter surface finish held to a tolerance of plus or minus 0.003 inches. At 1.5 inches in length with a 1\/4-28 UNF-2A threaded connection, a 0.054-inch nominal ID, and a 0.25-inch OD, this tip threads directly onto compatible gas diffusers for solid electrical contact. Licensed welding professionals and MIG gun technicians install these tips as part of routine gun maintenance on high-cycle production and fabrication equipment. Sold in packs of 25.\u003c\/p\u003e\u003cp\u003eThis contact tip is rated for standard welding applications up to 400 amps, making it appropriate for use on 200 to 400 amp MIG guns. The thick-walled copper alloy construction acts as a heat sink, drawing heat away from the arc source during sustained welding cycles. The tip is stamped with the part number and wire diameter for fast identification when swapping consumables on the floor. The twist-lock design seats the tip securely against the gas diffuser without relying on threads to maintain position, increasing the electrical conductive surface area between tip and diffuser. When the initial wear point is reached, a quarter-turn clockwise rotation exposes a fresh contact surface, effectively doubling the service life of each tip.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRated for standard MIG welding applications up to 400 amps\u003c\/li\u003e\n\u003cli\u003e122 DHP copper alloy construction provides high electrical conductivity and heat dissipation\u003c\/li\u003e\n\u003cli\u003eInside diameter held to plus or minus 0.003-inch tolerance for consistent wire feed\u003c\/li\u003e\n\u003cli\u003e1\/4-28 UNF-2A thread size for secure diffuser engagement\u003c\/li\u003e\n\u003cli\u003eTwist-lock design increases contact surface area between tip and diffuser\u003c\/li\u003e\n\u003cli\u003eRotatable tip exposes a second wear point, doubling usable tip life\u003c\/li\u003e\n\u003cli\u003ePart number and wire diameter marked on each tip for quick field identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 200 to 400 amp Tweco No. 2, No. 3, and No. 4 MIG guns, as well as compatible MIG gun series that accept a 1\/4-28 UNF-2A threaded contact tip with slip-on or thread-on nozzle styles.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eContact tip replacement is performed by qualified welding equipment technicians or trained MIG gun operators. Always power down the welder and allow the gun to cool before removing or installing contact tips. Ensure the gas diffuser threads are clean and undamaged before threading the new tip into place. Follow the gun manufacturer's service documentation for torque and seating procedures specific to the gun model in use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter\u003c\/strong\u003e: 0.040 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Inside Diameter\u003c\/strong\u003e: 0.054 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28 UNF-2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: up to 400 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 122 DHP copper alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eID Tolerance\u003c\/strong\u003e: plus or minus 0.003 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity\u003c\/strong\u003e: 25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: 1140-1103\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51345336205618,"sku":"1140-1103","price":62.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310545766.jpg?v=1782055103","url":"https:\/\/voomisupply.com\/products\/tweco-1140-1103-mig-contact-tip-0-040-inch-25-pack","provider":"Voomi Supply","version":"1.0","type":"link"}