{"product_id":"asc-engineered-solutions-4x3d-nb-hex-head-bushing-150-lb","title":"Asc Engineered Solutions 4X3D.NB Hex Head Bushing 150 Lb","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ASC Engineered Solutions 4X3D.NB is a galvanized malleable iron hex head bushing designed to reduce a 4-inch NPS female thread down to a 3.5-inch NPS male thread. Rated at 150 lb, this bushing handles standard working pressures in threaded pipe systems used across plumbing, HVAC, and light industrial piping applications. The hex head profile allows secure wrench engagement during installation without damaging the fitting body. Domestic manufacture to NPS threading standards ensures consistent fit and thread engagement with standard NPT pipe fittings and valves.\u003c\/p\u003e\u003cp\u003eThis bushing is suited for residential and commercial pipe systems where a reduction between a 4-inch and 3.5-inch threaded connection is required. Typical applications include reducing threaded fittings in gas distribution, water supply, and steam or condensate lines operating within the 150 lb pressure class. The galvanized finish provides corrosion resistance in exposed or moderately wet environments. It is installed by licensed plumbers, pipefitters, and HVAC mechanics working on threaded iron pipe systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReduces 4-inch NPS female thread to 3.5-inch NPS male thread\u003c\/li\u003e\n\u003cli\u003e150 lb pressure class rating for standard threaded pipe service\u003c\/li\u003e\n\u003cli\u003eMalleable iron construction for durability and thread strength\u003c\/li\u003e\n\u003cli\u003eGalvanized finish for corrosion resistance in wet or exposed installations\u003c\/li\u003e\n\u003cli\u003eHex head design allows full wrench engagement during makeup\u003c\/li\u003e\n\u003cli\u003eDomestic manufacture to NPS threading standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard fitting for 150 lb class threaded malleable iron pipe systems using NPS connections.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed plumbers or pipefitters working on threaded iron pipe systems. Shut off and depressurize the line before removing or installing any threaded fitting. Apply appropriate thread sealant or PTFE tape to the male threads per applicable IPC or IFGC requirements. Do not over-torque; use a pipe wrench sized for the fitting to avoid cracking the malleable iron body.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Size (Female)\u003c\/strong\u003e: 4 inches NPS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Size (Male)\u003c\/strong\u003e: 3.5 inches NPS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Class\u003c\/strong\u003e: 150 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Galvanized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin\u003c\/strong\u003e: Domestic\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ASC Engineered Solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4X3D.NB\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ASC ENGINEERED SOLUTIONS","offers":[{"title":"Default Title","offer_id":51525534843186,"sku":"GALBUSH4312","price":103.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b0f3e0422045048a4cec5a4edd4342f4.jpg?v=1785476558","url":"https:\/\/voomisupply.com\/products\/asc-engineered-solutions-4x3d-nb-hex-head-bushing-150-lb","provider":"Voomi Supply","version":"1.0","type":"link"}