{"product_id":"bk-521-976bg-black-iron-hex-bushing-1-1-2-x-1-1-4-in","title":"Bk 521-976BG Black Iron Hex Bushing 1-1\/2 X 1-1\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BK 521-976BG is a hexagonal pipe bushing made from black malleable iron, designed to reduce a 1-1\/2 inch male NPT thread down to a 1-1\/4 inch female NPT thread. This style of hex bushing is a standard component in black iron piping systems used for natural gas, propane, and steam distribution. Each fitting is individually flag tagged and carries the Mueller logo cast directly into the body. The part meets ANSI\/ASTM A-197 material standards, with dimensions conforming to ANSI\/ASME B16.14 and B16.39 and threads cut to ANSI B1.20.1. It ships as a single unit and is 100 percent inspected and quality tested before leaving the factory.\u003c\/p\u003e\u003cp\u003eThis hex bushing is suited for residential and light commercial piping installations where a threaded reduction is needed between two different pipe sizes. Typical applications include gas line rough-in, boiler piping, steam systems, and general black iron pipe assemblies. Plumbers and pipefitters install this fitting when connecting a larger-diameter pipe or valve to a smaller-diameter run. The hexagonal profile allows a pipe wrench or open-end wrench to seat properly during assembly, making it straightforward to thread and tighten in tight spaces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBlack malleable iron construction meets ANSI\/ASTM A-197 material specification\u003c\/li\u003e\n\u003cli\u003e1-1\/2 inch male NPT inlet reduces to 1-1\/4 inch female NPT outlet\u003c\/li\u003e\n\u003cli\u003eHexagonal body provides positive wrench engagement during installation\u003c\/li\u003e\n\u003cli\u003eThreads conform to ANSI B1.20.1 for reliable sealed connections\u003c\/li\u003e\n\u003cli\u003eDimensions meet ANSI\/ASME B16.14 and B16.39 standards\u003c\/li\u003e\n\u003cli\u003e100 percent inspected and quality tested; individually flag tagged\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard NPT threaded hex bushing for use in black iron pipe systems conforming to ANSI\/ASME B16.14 and B16.39 dimensional standards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis fitting is typically installed by licensed plumbers or pipefitters working on gas, steam, or hydronic systems. Shut off the gas supply or depressurize the system completely before removing or installing any threaded fittings. Apply an approved pipe thread sealant or PTFE tape rated for the service medium to all male threads before assembly. Follow all applicable local codes and IFGC or IPC requirements for pipe jointing and pressure testing.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Black Malleable Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Size\u003c\/strong\u003e: 1-1\/2 inches Male NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Size\u003c\/strong\u003e: 1-1\/4 inches Female NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Style\u003c\/strong\u003e: Hexagon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Standard\u003c\/strong\u003e: ANSI\/ASTM A-197\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional Standard\u003c\/strong\u003e: ANSI\/ASME B16.14, B16.39\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: ANSI B1.20.1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.339 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 521-976BG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K","offers":[{"title":"Default Title","offer_id":51346150916402,"sku":"521-976BG","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549911.jpg?v=1782072236","url":"https:\/\/voomisupply.com\/products\/bk-521-976bg-black-iron-hex-bushing-1-1-2-x-1-1-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}