{"product_id":"merit-brass-xnl119-20-brass-pipe-locknut-1-1-4-in-fnpt","title":"Merit Brass XNL119-20 Brass Pipe Locknut 1-1\/4 in Fnpt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERIT BRASS XNL119-20 is a lead-free brass pipe locknut designed to secure threaded fittings, bushings, and nipples in plumbing and piping assemblies. Sized at 1-1\/4 inches with female national pipe taper (FNPT) end connections, this Class 125 locknut is rated to 125 psi and is manufactured from brass for corrosion resistance in water service applications. It is installed by licensed plumbers and pipefitters in both residential and light commercial systems where a threaded mechanical lock is required to prevent backing out of fittings under pressure or vibration.\u003c\/p\u003e\n\u003cp\u003eThis locknut is suited for use in water supply, drainage, and general piping applications where a 1-1\/4-inch FNPT threaded connection is present. Its lead-free construction meets requirements for potable water contact under applicable safe drinking water regulations. Typical scenarios include securing fittings at panel penetrations, tank connections, and equipment inlets in residential plumbing systems and light commercial mechanical rooms.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLead-free brass construction meets potable water compliance requirements\u003c\/li\u003e\n  \u003cli\u003e1-1\/4 inch FNPT end connection for standard threaded pipe systems\u003c\/li\u003e\n  \u003cli\u003eClass 125 rating with 125 psi working pressure\u003c\/li\u003e\n  \u003cli\u003eBrass material provides corrosion resistance in water service environments\u003c\/li\u003e\n  \u003cli\u003eCompact locknut profile for use in tight or panel-mounted installations\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 1-1\/4-inch FNPT threaded pipe and fitting assemblies in standard Class 125 brass piping systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a licensed plumber or pipefitter. Shut off the water supply and depressurize the line before removing or installing any threaded fittings. Apply thread sealant tape or compound appropriate for the service type before threading the locknut onto the mating fitting. Follow local plumbing codes, including applicable IPC or state-adopted code requirements, for threaded joint assembly and potable water component use.\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: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connection\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\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Free\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.29 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: XNL119-20\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51539854131506,"sku":"XNL119-20","price":19.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b4b5809d0dc4914894c1c3cdf5d792f1_02f820f6-990c-4e37-b8d2-cfa06eaa1ba1.jpg?v=1785844560","url":"https:\/\/voomisupply.com\/products\/merit-brass-xnl119-20-brass-pipe-locknut-1-1-4-in-fnpt","provider":"Voomi Supply","version":"1.0","type":"link"}