{"product_id":"tweco-1540-1136-gas-diffuser-450a-mig-welding-5-pack","title":"Tweco 1540-1136 Gas Diffuser 450A Mig Welding 5 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TWECO 1540-1136 is a heavy-duty brass gas diffuser designed for use with slip-on nozzle assemblies on MIG welding guns rated up to 450 amps. Machined from 360 brass alloy bar stock, it measures 1.955 inches in overall length and features a 9\/16 inch-18 UNC-2A thread size with six 0.094 inch gas ports for consistent shielding gas distribution. A metal flat spring mounted to the outer diameter allows nozzle assemblies to slide on and lock in place during the weld cycle. A silicone O-ring seals against the nozzle assembly to prevent gas leakage. Licensed HVAC and welding professionals working with medium to heavy-duty MIG applications will find the dimensional stability and consistent electrical properties essential for repeatable results. Sold in packs of five.\u003c\/p\u003e\u003cp\u003eThis diffuser is suited for medium to heavy-duty standard MIG welding applications up to 450 amps. It is designed specifically for use with slip-on style nozzle assemblies and is compatible with the 450 A Tweco Spray Master MIG gun series as well as Tweco eliminator front-end consumable systems. The 16RS and 16S series designation covers a range of heavy-duty welding environments where stable arc characteristics and reliable gas coverage are critical. Typical install scenarios include fabrication shops, structural welding, and heavy manufacturing lines where high-amperage MIG guns see sustained duty cycles.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMachined from 360 brass alloy bar stock for consistent dimensional stability and reliable electrical conductivity\u003c\/li\u003e\n\u003cli\u003eSix 0.094 inch gas ports deliver even shielding gas distribution around the weld zone\u003c\/li\u003e\n\u003cli\u003e9\/16 inch-18 UNC-2A external thread mates with standard conductor tube on compatible MIG guns\u003c\/li\u003e\n\u003cli\u003eMetal flat spring on the outer diameter retains slip-on nozzle assemblies securely during the welding process\u003c\/li\u003e\n\u003cli\u003eSilicone O-ring seals the nozzle assembly interface to prevent shielding gas loss\u003c\/li\u003e\n\u003cli\u003ePart number rolled-stamped on the external surface for fast field identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with slip-on nozzle assemblies used on the 450 A Tweco Spray Master MIG gun series and Tweco eliminator front-end consumable systems. Fits the 16RS and 16S series heavy-duty MIG gun configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and replacement of MIG gun consumables should be performed by a qualified welding technician with the gun fully de-energized and the wire feeder disabled before handling. Thread the diffuser into the conductor tube by hand first to avoid cross-threading, then snug with appropriate pliers — do not over-torque brass fittings. Inspect the silicone O-ring for damage before reinstalling the nozzle assembly to maintain a proper gas seal.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.955 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 9\/16 inch-18 UNC-2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Holes\u003c\/strong\u003e: 6 x 0.094 inch diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Current Rating\u003c\/strong\u003e: 450 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 360 brass alloy bar stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5 per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 608246301075\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: 1540-1136\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51348010467634,"sku":"1540-1136","price":151.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310546138.jpg?v=1782117904","url":"https:\/\/voomisupply.com\/products\/tweco-1540-1136-gas-diffuser-450a-mig-welding-5-pack","provider":"Voomi Supply","version":"1.0","type":"link"}