{"product_id":"parker-41fx-6-brass-flared-tube-nut-3-8-in-5-8-18-unf","title":"Parker 41FX-6 Brass Flared Tube Nut 3\/8 in 5\/8-18 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PARKER 41FX-6 is a brass flared tube nut designed for use in flared tube fitting assemblies. It mates with 45-degree flare fittings on 3\/8-inch OD tubing and accepts a 5\/8-18 UNF thread. Rated to 1000 psi maximum working pressure and 250 degrees F maximum working temperature, this nut is suitable for hydraulic, refrigeration, and pneumatic line connections where a secure, leak-resistant flare joint is required. At 0.91 inches overall length, it is a short-body design that fits in tight installations. Licensed HVAC technicians, plumbers, and refrigeration mechanics are the primary installers of this type of fitting hardware.\u003c\/p\u003e\n\u003cp\u003eThis flared tube nut is used in residential and light commercial applications wherever 3\/8-inch OD tubing is joined with 45-degree SAE flare connections. Typical install scenarios include refrigerant line sets, fuel gas lines, hydraulic control lines, and plumbing supply runs that require a removable, pressure-rated mechanical joint. The short nut profile suits installations with limited wrench clearance.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e45-degree flare end connection for reliable SAE-style tube joints\u003c\/li\u003e\n  \u003cli\u003e5\/8-18 UNF thread for precise, secure engagement\u003c\/li\u003e\n  \u003cli\u003eBrass construction resists corrosion in refrigerant, fuel, and water service\u003c\/li\u003e\n  \u003cli\u003eRated to 1000 psi maximum working pressure\u003c\/li\u003e\n  \u003cli\u003eRated to 250 degrees F maximum working temperature\u003c\/li\u003e\n  \u003cli\u003eMeets SAE J512, SAE J513, and UL Listing standards\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 45-degree SAE flare assemblies using 3\/8-inch OD tubing with a 5\/8-18 UNF threaded connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians, refrigeration mechanics, or plumbers. De-pressurize and evacuate the line before disassembly or assembly of any flare fitting. Use an appropriately sized flare nut wrench to avoid rounding the nut; do not over-tighten, as brass flare nuts are susceptible to thread damage. Verify the tubing flare is properly formed to the 45-degree angle before final tightening to ensure a leak-free joint.\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: 45-Degree Flare\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTube OD\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-18\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: 0.91 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 1000 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: 0.05 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27121707\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: 41FX-6\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51542895722802,"sku":"41FX-6","price":31.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/13f5095f804812793f1115c9761454c4_d01148f8-fa5d-44d6-9090-d79c351c8f79.jpg?v=1785910206","url":"https:\/\/voomisupply.com\/products\/parker-41fx-6-brass-flared-tube-nut-3-8-in-5-8-18-unf","provider":"Voomi Supply","version":"1.0","type":"link"}