{"product_id":"irwin-ir1904zr-npt-pipe-tap-3-8-inches","title":"Irwin IR1904ZR Npt Pipe Tap 3\/8 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe IRWIN IR1904ZR is a 3\/8-inch NPT pipe tap designed for cutting internal tapered pipe threads in metal pipe fittings, valve bodies, and threaded ports. NPT (National Pipe Taper) threads are the standard for pressure-tight pipe connections in plumbing, HVAC, and gas piping systems. This tap cuts the tapered thread profile required for proper sealing without relying solely on thread sealant. It is a hand or machine tap intended for use by licensed plumbers, pipefitters, HVAC technicians, and electricians working with threaded conduit or pipe assemblies.\u003c\/p\u003e\u003cp\u003eThe IR1904ZR is suited for field and shop use where a 3\/8-inch NPT threaded port needs to be cut or re-chased in steel, iron, brass, or similar materials. Typical applications include tapping new ports in manifolds, repairing damaged threads in valve bodies, and preparing fittings for threaded pipe connections in residential and light commercial plumbing and HVAC systems. Sold individually as a single tap.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/8-inch NPT tapered thread profile for pressure-rated pipe connections\u003c\/li\u003e\n\u003cli\u003eDesigned for cutting internal pipe threads in metal workpieces\u003c\/li\u003e\n\u003cli\u003eCompatible with standard tap wrenches and machine tap holders\u003c\/li\u003e\n\u003cli\u003eNPT taper ensures interference fit for leak-resistant threaded joints\u003c\/li\u003e\n\u003cli\u003eSingle-unit packaging for individual replacement or stocking\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling tap for use wherever 3\/8-inch NPT internal pipe threads are required in plumbing, HVAC, or gas piping applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eNPT pipe taps are used by licensed plumbers, pipefitters, and HVAC technicians following applicable codes such as the IPC and IFGC. Always secure the workpiece firmly and use appropriate cutting fluid to extend tap life and produce clean threads. De-energize, depressurize, and drain any system before tapping into live pipe or fittings. Do not force the tap if resistance increases sharply, as this may indicate chip buildup or material hardness requiring a different tap geometry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: NPT (National Pipe Taper)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Size\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: IRWIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: IR1904ZR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IRWIN","offers":[{"title":"Default Title","offer_id":51345614864690,"sku":"IR1904ZR","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310499491.jpg?v=1782061241","url":"https:\/\/voomisupply.com\/products\/irwin-ir1904zr-npt-pipe-tap-3-8-inches","provider":"Voomi Supply","version":"1.0","type":"link"}