{"product_id":"midland-industries-681212c-dot-male-connector-3-4-in-ptc-npt","title":"Midland Industries 681212C Dot Male Connector 3\/4 in Ptc Npt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MIDLAND INDUSTRIES 681212C is a D.O.T.-rated composite male connector designed for push-to-connect pneumatic and fluid line applications. It features a 3\/4-inch push-to-connect inlet on one end and a 3\/4-inch male NPT threaded outlet on the other, with a 3\/4-14 thread specification. Rated to 145 psi and built to handle temperatures from -40 to 140 degrees F, this fitting is engineered for reliable service in demanding transport and industrial environments. The composite body construction keeps weight low while maintaining the pressure and temperature performance required for D.O.T.-compliant installations. Plumbers, HVAC technicians, and fleet maintenance professionals install this type of connector in air brake, pneumatic control, and fluid transfer systems.\u003c\/p\u003e\n\u003cp\u003eThis connector is suited for residential, commercial, and fleet applications where a quick push-to-connect interface must transition to a threaded male NPT port. Typical installations include air line assemblies on vehicles and trailers, compressed air distribution systems, and pneumatic control panels. The D.O.T. composite body design meets Department of Transportation standards, making it appropriate for use in regulated transport equipment and associated service lines. Its compact form factor fits in tight plumbing runs without requiring special tooling for the push-to-connect side.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eD.O.T.-rated composite body for compliant use in transport and pneumatic systems\u003c\/li\u003e\n  \u003cli\u003e3\/4-inch push-to-connect inlet allows tool-free tube insertion and secure retention\u003c\/li\u003e\n  \u003cli\u003e3\/4-inch male NPT outlet with 3\/4-14 thread for standard pipe thread connections\u003c\/li\u003e\n  \u003cli\u003e145 psi maximum working pressure for robust pneumatic service\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range of -40 to 140 degrees F suits both cold-weather and warm-climate service\u003c\/li\u003e\n  \u003cli\u003eLightweight composite construction reduces overall assembly weight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a D.O.T.-compliant OEM-style replacement or new-installation fitting for push-to-connect pneumatic and fluid line assemblies using 3\/4-inch OD tubing with a 3\/4-inch male NPT port interface.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by licensed plumbers, HVAC technicians, or qualified fleet maintenance mechanics. Depressurize the system completely and shut off the fluid or air supply before removing or installing any fitting. Ensure the receiving NPT port is clean and apply appropriate thread sealant per the applicable code or system requirements. For the push-to-connect side, use properly sized, deburred tubing cut to a clean square end to ensure full engagement and a leak-free seal.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Size 1\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type 1\u003c\/strong\u003e: Push-to-Connect\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Size 2\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type 2\u003c\/strong\u003e: Male NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Specification\u003c\/strong\u003e: 3\/4-14\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 145 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range\u003c\/strong\u003e: -40 to 140 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Composite\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.95 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1.2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.15 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.27 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: MIDLAND INDUSTRIES\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 681212C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MIDLAND INDUSTRIES","offers":[{"title":"Default Title","offer_id":67948891603250,"sku":"681212C","price":37.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5abeed02b4fb462763a99f9a937563d5_38e8ac85-7e95-43a9-8468-15150da11dde.jpg?v=1791676109","url":"https:\/\/voomisupply.com\/products\/midland-industries-681212c-dot-male-connector-3-4-in-ptc-npt","provider":"Voomi Supply","version":"1.0","type":"link"}