{"product_id":"tweco-1340-1400-nozzle-insulator-400a-mig-gun","title":"Tweco 1340-1400 Nozzle Insulator 400A Mig Gun","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TWECO 1340-1400 is a coarse thread nozzle insulator designed for use with Tweco No. 4 MIG welding guns rated up to 400 amps. The insulator fits between the nozzle and the gun body, providing electrical isolation and protecting the front end assembly from heat and spatter during the welding process. Replacement of worn nozzle insulators is routine preventive maintenance that keeps MIG guns operating at full efficiency. This part is a standard consumable stocked by welding technicians and shop maintenance personnel working with Tweco-style MIG equipment.\u003c\/p\u003e\u003cp\u003eThis nozzle insulator is suited for heavy-duty MIG welding applications where a Tweco No. 4 gun is in service. Typical environments include fabrication shops, structural steel work, and industrial maintenance operations running higher-amperage wire-feed processes. At 0.23 pounds and compact dimensions, it is a lightweight consumable that should be kept on hand as a regular spare to minimize downtime during gun servicing.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCoarse thread design for secure nozzle retention on Tweco No. 4 MIG guns\u003c\/li\u003e\n\u003cli\u003eRated for use with guns up to 400 amps\u003c\/li\u003e\n\u003cli\u003eProvides electrical isolation between the nozzle and gun body\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight for easy field replacement\u003c\/li\u003e\n\u003cli\u003eSold individually (minimum order quantity: 2)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Tweco No. 4 MIG guns rated up to 400 amps. Verify thread type before installation to confirm fitment with your specific gun configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and replacement should be performed by a qualified welding technician. Always disconnect the MIG gun from the wire feeder and ensure the power source is off before servicing front-end consumables. Use the appropriate spanner or nozzle wrench to avoid damaging the threads on the insulator or gun body. Do not overtighten, as this can crack the insulator body and compromise electrical isolation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 400 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Coarse thread\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 0.8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.23 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each (minimum order quantity: 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 608246061634\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: 1340-1400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51346875351346,"sku":"1340-1400","price":64.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310546102.jpg?v=1782093185","url":"https:\/\/voomisupply.com\/products\/tweco-1340-1400-nozzle-insulator-400a-mig-gun","provider":"Voomi Supply","version":"1.0","type":"link"}