{"product_id":"coilhose-pneumatics-581-pneumatic-hose-coupler-3-8-mnpt","title":"Coilhose Pneumatics 581 Pneumatic Hose Coupler 3\/8 Mnpt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe COILHOSE PNEUMATICS 581 is a pneumatic hose coupler designed for use in industrial compressed-air systems. It features a 3\/8-inch male NPT (MNPT) threaded connection and a 3\/8-inch body diameter, and is built from nickel-plated steel for corrosion resistance and long service life. The coupler is rated for a maximum working pressure of 300 psi and handles temperatures from -40 degrees F to 250 degrees F. It follows the Industrial Interchange standard, making it broadly compatible with air tools, hoses, and fittings used in shop and field environments. Installation is handled by HVAC technicians, mechanics, and industrial maintenance personnel.\u003c\/p\u003e\n\u003cp\u003eThis coupler is suited for residential shops, commercial facilities, and industrial maintenance operations where Industrial Interchange pneumatic fittings are the standard. It is a threaded coupler half intended for use with air compressors, blow guns, impact wrenches, pneumatic nailers, and similar air-tool applications. The MNPT thread connects directly to hose end fittings, manifolds, or tool inlets. Its nickel-plated steel construction withstands the demands of high-cycle shop environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial Interchange standard — compatible with widely used pneumatic tool and hose fittings\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch MNPT threaded connection for direct installation on hose ends or tool inlets\u003c\/li\u003e\n  \u003cli\u003eRated to 300 psi maximum working pressure\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range of -40 degrees F to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003eNickel-plated steel construction for corrosion resistance and durability\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch body diameter — standard size for mid-range air tool applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or drop-in addition for Industrial Interchange pneumatic systems using 3\/8-inch MNPT threaded connections.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis coupler is installed by mechanics, HVAC technicians, or industrial maintenance personnel working on compressed-air distribution systems. Depressurize the air line completely before removing or installing any pneumatic fitting. Apply thread sealant tape to the MNPT threads per standard practice to prevent air leaks. Tighten to snug-plus-hand-tight using an appropriately sized wrench — avoid overtightening, which can crack the body or damage thread sealing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoupler Type\u003c\/strong\u003e: Coupler\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterchange Type\u003c\/strong\u003e: Industrial Interchange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: MNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 300 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Temperature\u003c\/strong\u003e: 250 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum 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\u003eFinish\u003c\/strong\u003e: Nickel-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.33 pounds\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: COILHOSE PNEUMATICS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 581\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COILHOSE PNEUMATICS","offers":[{"title":"Default Title","offer_id":51558223085874,"sku":"581","price":31.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a900fe671aea40614df75e4c7d3a18f_a5890600-7bec-4ab5-9533-89ebef1191eb.jpg?v=1786406501","url":"https:\/\/voomisupply.com\/products\/coilhose-pneumatics-581-pneumatic-hose-coupler-3-8-mnpt","provider":"Voomi Supply","version":"1.0","type":"link"}