{"product_id":"bk-521-943bg-black-iron-hex-bushing-3-4-x-1-2-inch","title":"Bk 521-943BG Black Iron Hex Bushing 3\/4 X 1\/2 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BK 521-943BG is a black malleable iron hex bushing designed to reduce a 3\/4 inch male NPT connection to a 1\/2 inch female NPT connection. This hexagon-style bushing is a standard pipe fitting used to join pipes or components of different thread sizes in gas, air, and liquid distribution systems. Each unit is individually flag tagged and carries the Mueller logo cast directly into the body. The fitting is 100 percent inspected and quality tested before leaving the factory. It meets ANSI\/ASTM A-197 material standards, ANSI\/ASME B16.14 and B16.39 dimensional standards, and ANSI B1.20.1 thread specifications.\u003c\/p\u003e\n\u003cp\u003eThis hex bushing is suited for residential and light commercial plumbing, gas distribution, and mechanical piping applications where a threaded size reduction is needed in a black iron system. Plumbers and pipefitters typically use this fitting when transitioning between pipe sizes on black iron gas lines, compressed air lines, or hydronic heating systems. The hexagon body allows standard wrench engagement for secure installation without distorting the fitting.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBlack malleable iron construction meets ANSI\/ASTM A-197 material specification\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch male NPT to 1\/2 inch female NPT hex bushing configuration\u003c\/li\u003e\n  \u003cli\u003eThreads conform to ANSI B1.20.1 for reliable seating and leak-free makeup\u003c\/li\u003e\n  \u003cli\u003eDimensions meet ANSI\/ASME B16.14 and B16.39 standards\u003c\/li\u003e\n  \u003cli\u003eMueller logo cast into the body; individually flag tagged for easy identification\u003c\/li\u003e\n  \u003cli\u003e100 percent inspected and quality tested\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ANSI\/ASME-compliant threaded hex bushing for use in black iron pipe systems requiring a 3\/4 inch to 1\/2 inch NPT reduction.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by licensed plumbers or pipefitters working on threaded black iron systems. Shut off and depressurize the line completely before disassembling or installing any threaded fittings. Apply an approved pipe thread sealant or PTFE tape to the male threads before makeup, following local code requirements such as the IFGC or IPC. Use a properly sized pipe wrench on the hex body to avoid damaging the fitting or adjacent components.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Black malleable iron, ANSI\/ASTM A-197\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet Thread (Male)\u003c\/strong\u003e: 3\/4 inch NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet Thread (Female)\u003c\/strong\u003e: 1\/2 inch NPT\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\u003eDimensional Standard\u003c\/strong\u003e: ANSI\/ASME B16.14, B16.39\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.118 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\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: BK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 521-943BG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"B\u0026K","offers":[{"title":"Default Title","offer_id":51346806276402,"sku":"521-943BG","price":16.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549891.jpg?v=1782091010","url":"https:\/\/voomisupply.com\/products\/bk-521-943bg-black-iron-hex-bushing-3-4-x-1-2-inch","provider":"Voomi Supply","version":"1.0","type":"link"}