{"product_id":"parker-41fs-12-brass-flared-tube-short-nut-3-4-in-od","title":"Parker 41FS-12 Brass Flared Tube Short Nut 3\/4 in Od","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PARKER 41FS-12 is a brass flared tube short nut designed to secure 45-degree flare connections in refrigeration, HVAC, and fluid system tubing assemblies. It mates with 3\/4 inch OD tubing using a 1-1\/16-14 UNF thread and seats against a standard 45-degree flare end to form a leak-resistant mechanical joint without the need for sealants or thread compounds. Rated to 550 psi maximum working pressure and 250 degrees F maximum working temperature, this short nut meets SAE J512 and SAE J513 standards and carries a UL Listing. HVAC technicians, refrigeration mechanics, and plumbers install this fitting when assembling or servicing flared tube connections in pressure lines and refrigerant circuits.\u003c\/p\u003e\n\u003cp\u003eThis short nut is suited for residential and commercial HVAC systems, refrigeration equipment, and fluid handling assemblies where 45-degree SAE flare fittings are specified. It is commonly used at service valves, expansion devices, and line set connections where a short nut profile is required to clear adjacent components. The brass construction resists corrosion in both wet and dry service environments, making it appropriate for refrigerant, water, and hydraulic fluid applications within its rated pressure and temperature limits.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e45-degree flare end connection conforms to SAE J512 and SAE J513 standards\u003c\/li\u003e\n  \u003cli\u003eUL Listed for verified compliance in rated applications\u003c\/li\u003e\n  \u003cli\u003eRated to 550 psi maximum working pressure\u003c\/li\u003e\n  \u003cli\u003eRated to 250 degrees F (121 degrees C) maximum working temperature\u003c\/li\u003e\n  \u003cli\u003e1-1\/16-14 UNF thread for positive engagement with standard flare fittings\u003c\/li\u003e\n  \u003cli\u003eShort nut profile at 1.5 inches overall length reduces clearance requirements\u003c\/li\u003e\n  \u003cli\u003eBrass construction resists corrosion in refrigerant and fluid service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 3\/4 inch OD tubing in 45-degree SAE flare assemblies conforming to SAE J512 and SAE J513. Compatible with standard 1-1\/16-14 UNF flare fittings used in HVAC, refrigeration, and fluid system applications within the rated pressure and temperature range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician, refrigeration mechanic, or licensed plumber. Depressurize and isolate the line before disassembling or installing any flare fitting. Ensure tubing is properly flared to the correct 45-degree angle using a calibrated flaring tool before seating the nut — an improperly formed flare is the leading cause of joint leakage. Hand-tighten the nut onto the fitting body before applying final torque with an appropriately sized wrench; avoid over-tightening, which can crack the flare or distort the seating surface.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Nut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connection\u003c\/strong\u003e: Flare\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlared Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/16-14\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 550 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 250 degrees F (121 degrees C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: SAE J512, SAE J513, UL Listing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.23 pounds\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: PARKER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 41FS-12\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51543033577778,"sku":"41FS-12","price":22.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/13f5095f804812793f1115c9761454c4_341e2cd4-e016-42dc-a8ad-fffe4ed5b980.jpg?v=1785914198","url":"https:\/\/voomisupply.com\/products\/parker-41fs-12-brass-flared-tube-short-nut-3-4-in-od","provider":"Voomi Supply","version":"1.0","type":"link"}