{"product_id":"steel-hex-nipple-3-8-mpt-x-1-4-mpt-4000-psi-oem-replacement-fitting","title":"Steel Hex Nipple 3\/8\" MPT x 1\/4\" MPT 4000 PSI – OEM Replacement Fitting","description":"\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2587\u003cbr\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Pressure Washer Parts → Fittings \u0026amp; Adapters → Steel Fittings\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Steel Reducing Hex Nipple\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eThe \u003cstrong\u003eSteel Hex Nipple 3\/8\" MPT x 1\/4\" MPT (Part #2587)\u003c\/strong\u003e is a heavy-duty OEM replacement fitting designed to connect female-threaded components with different thread sizes in pressure washer systems, pumps, hydraulic support equipment, compressed air systems, and industrial fluid transfer applications. Featuring a \u003cstrong\u003e3\/8-inch Male Pipe Thread (MPT)\u003c\/strong\u003e connection on one end and a \u003cstrong\u003e1\/4-inch Male Pipe Thread (MPT)\u003c\/strong\u003e connection on the other, this reducing hex nipple provides a secure, leak-resistant transition between threaded components while maintaining reliable fluid or air flow.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine OEM replacement fitting\u003c\/li\u003e\n\u003cli\u003e3\/8\" MPT x 1\/4\" MPT reducing configuration\u003c\/li\u003e\n\u003cli\u003eHeavy-duty steel construction\u003c\/li\u003e\n\u003cli\u003eRated up to 3000 PSI\u003c\/li\u003e\n\u003cli\u003eHex body for easy wrench installation\u003c\/li\u003e\n\u003cli\u003eLeak-resistant threaded connections\u003c\/li\u003e\n\u003cli\u003eConnects female-threaded components of different sizes\u003c\/li\u003e\n\u003cli\u003eSuitable for high-pressure applications\u003c\/li\u003e\n\u003cli\u003eCompact and space-saving design\u003c\/li\u003e\n\u003cli\u003eDurable construction for demanding environments\u003c\/li\u003e\n\u003cli\u003eLong service life and reliable performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2587\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Reducing Hex Nipple\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnection Size I:\u003c\/strong\u003e 3\/8\" MPT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnection Size II:\u003c\/strong\u003e 1\/4\" MPT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThread Type:\u003c\/strong\u003e Male Pipe Thread (MPT) x Male Pipe Thread (MPT)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Pressure:\u003c\/strong\u003e 3000 PSI\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Replacement:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Component Connection and Thread Size Adaptation\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePressure washer systems\u003c\/li\u003e\n\u003cli\u003ePump assemblies\u003c\/li\u003e\n\u003cli\u003eHydraulic support systems\u003c\/li\u003e\n\u003cli\u003eCompressed air systems\u003c\/li\u003e\n\u003cli\u003ePressure gauge installations\u003c\/li\u003e\n\u003cli\u003eIndustrial fluid transfer equipment\u003c\/li\u003e\n\u003cli\u003eChemical application equipment\u003c\/li\u003e\n\u003cli\u003eWater supply systems\u003c\/li\u003e\n\u003cli\u003eAgricultural equipment\u003c\/li\u003e\n\u003cli\u003eWash-down systems\u003c\/li\u003e\n\u003cli\u003eCommercial cleaning equipment\u003c\/li\u003e\n\u003cli\u003eGeneral maintenance and repair projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003ePerformance Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConnects components with different thread sizes\u003c\/li\u003e\n\u003cli\u003eSupports high-pressure system operation\u003c\/li\u003e\n\u003cli\u003eDurable steel construction for demanding environments\u003c\/li\u003e\n\u003cli\u003eLeak-resistant threaded connections\u003c\/li\u003e\n\u003cli\u003eEasy installation with integrated hex body\u003c\/li\u003e\n\u003cli\u003eSimplifies equipment modifications and repairs\u003c\/li\u003e\n\u003cli\u003eReliable performance under pressure\u003c\/li\u003e\n\u003cli\u003eLong-lasting service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eSigns Replacement May Be Needed\u003c\/h2\u003e\n\u003cp\u003eReplace the fitting if you notice:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDamaged or stripped threads\u003c\/li\u003e\n\u003cli\u003eFluid or air leaks\u003c\/li\u003e\n\u003cli\u003eVisible corrosion or rust\u003c\/li\u003e\n\u003cli\u003eCracks or deformation in the fitting body\u003c\/li\u003e\n\u003cli\u003eLoose connections\u003c\/li\u003e\n\u003cli\u003eDifficulty maintaining a proper seal\u003c\/li\u003e\n\u003cli\u003eExcessive wear from repeated installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eShut off system pressure before servicing.\u003c\/li\u003e\n\u003cli\u003eInspect all mating threads for wear or damage.\u003c\/li\u003e\n\u003cli\u003eApply appropriate thread sealant or PTFE thread tape.\u003c\/li\u003e\n\u003cli\u003eThread the fitting into both female ports by hand.\u003c\/li\u003e\n\u003cli\u003eTighten securely using a wrench on the hex body.\u003c\/li\u003e\n\u003cli\u003eAvoid overtightening to prevent thread damage.\u003c\/li\u003e\n\u003cli\u003ePressurize the system and inspect for leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Verify compatibility with your system's thread sizes and operating pressure requirements before installation. Always ensure the fitting's pressure rating meets or exceeds system operating pressure.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInspect threaded fittings regularly for leaks.\u003c\/li\u003e\n\u003cli\u003eCheck for corrosion or physical damage during maintenance.\u003c\/li\u003e\n\u003cli\u003eReplace damaged or worn fittings promptly.\u003c\/li\u003e\n\u003cli\u003eKeep threads clean and free from debris.\u003c\/li\u003e\n\u003cli\u003eVerify proper sealing after servicing.\u003c\/li\u003e\n\u003cli\u003eMonitor fitting integrity during operation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pressure Systems Innovations","offers":[{"title":"Default Title","offer_id":53414052135275,"sku":null,"price":2.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/2587STEELHEXNIPPLE.webp?v=1782077927","url":"https:\/\/generalsprayers.com\/products\/steel-hex-nipple-3-8-mpt-x-1-4-mpt-4000-psi-oem-replacement-fitting","provider":"GeneralSprayers","version":"1.0","type":"link"}