{"product_id":"merit-brass-x119-12-brass-pipe-locknut-3-4-in-fnpt","title":"Merit Brass X119-12 Brass Pipe Locknut 3\/4 in Fnpt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERIT BRASS X119-12 is a 3\/4 inch brass pipe locknut designed for threaded pipe connections in plumbing, HVAC, and industrial piping systems. It features female NPT (FNPT) ends and a Class 125 pressure rating of 125 psi. Locknuts are used to secure fittings, valves, or other components against a panel, bulkhead, or adjacent fitting by threading onto the male-threaded pipe or fitting body and tightening down to create a rigid, leak-resistant mechanical hold. The brass construction provides corrosion resistance suitable for water, air, and many common fluid service applications. Licensed plumbers and pipefitters are the primary installers of this type of fitting.\u003c\/p\u003e\n\u003cp\u003eThis locknut is suited for residential and light commercial plumbing, hydronic heating, and general-purpose piping applications where a 3\/4 inch FNPT threaded connection is required. It is commonly installed at panel penetrations, tank fittings, and valve assemblies where a locking mechanism is needed to prevent loosening or rotation of a threaded fitting body. The brass material makes it compatible with copper and brass piping systems as well as many threaded iron and steel assemblies in low-to-moderate pressure service.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4 inch FNPT threaded ends for standard NPT pipe compatibility\u003c\/li\u003e\n  \u003cli\u003eClass 125 pressure rating at 125 psi for low-to-moderate pressure systems\u003c\/li\u003e\n  \u003cli\u003eBrass construction offers corrosion resistance in water and air service\u003c\/li\u003e\n  \u003cli\u003eThreaded connection type for tool-assisted hand installation without soldering\u003c\/li\u003e\n  \u003cli\u003eCompact, lightweight design at 0.13 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation locknut for 3\/4 inch FNPT threaded pipe systems rated to Class 125 service conditions.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a licensed plumber or qualified pipefitter in accordance with applicable IPC and local plumbing codes. Shut off and depressurize the pipe system completely before removing or installing any threaded fittings. Use appropriate pipe thread sealant or PTFE tape on male threads to ensure a leak-free joint, and tighten with the correct wrench size to avoid over-torquing the brass fitting body. Do not exceed the rated working pressure of 125 psi for this fitting class.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Locknut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connections\u003c\/strong\u003e: FNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: FNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Rating\u003c\/strong\u003e: 125 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e: 125\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\/Finish\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Free\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 40175300\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: MERIT BRASS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: X119-12\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51539488571698,"sku":"X119-12","price":22.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/49c6795d7d18da57e394b49b582b2298.jpg?v=1785841492","url":"https:\/\/voomisupply.com\/products\/merit-brass-x119-12-brass-pipe-locknut-3-4-in-fnpt","provider":"Voomi Supply","version":"1.0","type":"link"}