{"product_id":"eaton-ff4177-16s-square-head-pipe-plug-1-inch-mnpt","title":"Eaton FF4177-16S Square Head Pipe Plug 1 Inch Mnpt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EATON FF4177-16S is a square head pipe plug designed to seal threaded pipe openings in industrial and commercial plumbing, HVAC, and mechanical systems. Manufactured from steel, this straight-body plug features a 1-inch male MNPT thread for secure, leak-resistant closure of pipe ends, tees, crosses, and other fittings. The square drive head allows installation and removal with a standard wrench or socket. It is rated for a working temperature range of -40 degrees F to 250 degrees F, making it suitable for hot and cold service lines encountered in typical mechanical system work.\u003c\/p\u003e\n\u003cp\u003eThis plug is used wherever a threaded pipe port needs to be capped or blanked off during installation, maintenance, or system modification. Common applications include sealing unused ports on pipe manifolds, capping test ports, and plugging open tees during phased construction or repair work. It is appropriate for plumbing, hydronic heating, compressed air, and similar low-to-moderate pressure piping systems handled by licensed plumbers and pipefitters.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-inch MNPT male thread for direct engagement with standard NPT female fittings\u003c\/li\u003e\n  \u003cli\u003eSquare head drive allows use of a wrench or socket for installation and removal\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides durability in mechanical and industrial environments\u003c\/li\u003e\n  \u003cli\u003eRated from -40 degrees F to 250 degrees F for broad service temperature coverage\u003c\/li\u003e\n  \u003cli\u003eStraight fitting shape for straightforward port sealing without offset or transition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or stock fitting for use in standard 1-inch MNPT female-threaded pipe ports across industrial and commercial piping systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed plumbers or pipefitters following applicable IPC and IFGC guidelines. De-pressurize and isolate the system section before installing or removing any pipe plug. Apply appropriate thread sealant or PTFE tape to the male threads before engagement. Do not overtighten steel plugs into cast fittings, as this may crack the female fitting body.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Square Head Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Shape\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMale Thread Size\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: MNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: MNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 250 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -40 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 40175305\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: EATON\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: FF4177-16S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51544096670002,"sku":"FF4177-16S","price":20.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/90cba693157751745fcb1526f6951386.jpg?v=1785924095","url":"https:\/\/voomisupply.com\/products\/eaton-ff4177-16s-square-head-pipe-plug-1-inch-mnpt","provider":"Voomi Supply","version":"1.0","type":"link"}