{"product_id":"eaton-1290-12s-steel-flared-tube-nut-3-4-in-od-sae","title":"Eaton 1290-12S Steel Flared Tube Nut 3\/4 in Od Sae","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EATON 1290-12S is a 3-piece steel flared tube nut designed for use in hydraulic and fluid-power line assemblies requiring a secure, leak-resistant connection. It accepts 3\/4 inch tube outside diameter and features a 1-1\/16-12 SAE thread with a 37-degree flare angle. Rated to 3000 psi maximum working pressure, this fitting nut is built to SAE 070110 standards. The 3-piece construction allows the nut to be installed over tubing before flaring, then threaded onto a mating male flare fitting to complete the connection. Overall length is 1.02 inches. Installers in hydraulic, refrigeration, and fluid-transfer applications rely on this type of fitting for reliable, vibration-tolerant connections.\u003c\/p\u003e\n\u003cp\u003eThe 1290-12S is suited for use in hydraulic systems, fluid-power circuits, and high-pressure tubing assemblies where SAE 37-degree flare fittings are specified. Typical install scenarios include mobile hydraulic equipment, industrial machinery plumbing, and commercial fluid-transfer lines. The 3\/4 inch tube OD and 1-1\/16-12 thread size make it a standard choice when routing steel tubing through systems that require rated working pressures up to 3000 psi.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4 inch tube outside diameter for compatibility with standard SAE flare tubing\u003c\/li\u003e\n  \u003cli\u003e1-1\/16-12 SAE thread for secure mating with male flare fittings\u003c\/li\u003e\n  \u003cli\u003e37-degree flare angle per SAE 070110 standard\u003c\/li\u003e\n  \u003cli\u003e3000 psi maximum working pressure rating\u003c\/li\u003e\n  \u003cli\u003e3-piece design allows pre-installation over tubing before flaring\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in high-pressure hydraulic environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or service fitting for hydraulic and fluid-power tube assemblies requiring SAE 37-degree flare connections with 3\/4 inch tube OD and 1-1\/16-12 thread specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by hydraulic technicians or plumbers working on fluid-power systems. Always depressurize and isolate the hydraulic circuit before disassembling or replacing fittings. Ensure the tube end is properly flared to the correct 37-degree angle before tightening the nut onto the mating fitting. Inspect threads and flare seat for damage before assembly to avoid leaks under pressure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 3000 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTube Outside Diameter\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/16-12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: SAE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlared Angle\u003c\/strong\u003e: 37 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connection\u003c\/strong\u003e: Flare\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Nut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.02 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.17 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: SAE 070110\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: EATON\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1290-12S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51540534427954,"sku":"1290-12S","price":17.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f87487227c187a27ee086ebfc054022f.jpg?v=1785857717","url":"https:\/\/voomisupply.com\/products\/eaton-1290-12s-steel-flared-tube-nut-3-4-in-od-sae","provider":"Voomi Supply","version":"1.0","type":"link"}