{"product_id":"midland-industries-64703-hex-locknut-1-2-in-galvanized-iron","title":"Midland Industries 64703 Hex Locknut 1\/2 in Galvanized Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MIDLAND INDUSTRIES 64703 is a 1\/2-inch galvanized malleable iron hex locknut designed to secure threaded pipe fittings and prevent loosening under pressure or vibration. It carries a 150 psi pressure rating and is rated for temperatures from -20 degrees F to 350 degrees F, making it suitable for a wide range of piping applications. The female straight connection and 1\/2-14 thread make this a standard-class fitting for gas, water, and steam distribution systems. Licensed plumbers, pipefitters, and HVAC technicians commonly use locknuts like this one to lock bushings, nipples, or other fittings securely within threaded assemblies.\u003c\/p\u003e\n\u003cp\u003eThis fitting is used in residential and light commercial piping installations where a 150-pound class galvanized malleable iron fitting is required. Typical applications include natural gas distribution, compressed air lines, and water supply piping. The galvanized finish provides corrosion resistance for both indoor and outdoor environments. At 0.06 pounds and a compact profile, it is well-suited for tight or confined installations where standard hex tooling must be used.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGalvanized malleable iron construction for corrosion resistance and durability\u003c\/li\u003e\n  \u003cli\u003e150 psi pressure rating for standard service applications\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range of -20 degrees F to 350 degrees F\u003c\/li\u003e\n  \u003cli\u003e1\/2-14 female straight thread for reliable pipe engagement\u003c\/li\u003e\n  \u003cli\u003eHex profile allows standard wrench installation\u003c\/li\u003e\n  \u003cli\u003e0.31-inch thickness provides solid locking contact against mating fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style 150-pound class galvanized malleable iron locknut for use with standard 1\/2-inch NPT threaded pipe fittings in gas, water, and compressed air piping systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, including the IPC and IFGC where relevant. Shut off and depressurize the supply line fully before removing or replacing any threaded fitting. Use a properly sized open-end or adjustable wrench on the hex profile  -  pipe wrenches can deform the fitting. Apply thread sealant or tape appropriate for the service medium before final tightening.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-14\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Female Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Rating\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range\u003c\/strong\u003e: -20 degrees F to 350 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.31 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.3 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: 0.06 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Galvanized\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Class\u003c\/strong\u003e: 150 lb Malleable\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: 64703\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MIDLAND INDUSTRIES","offers":[{"title":"Default Title","offer_id":67952914497842,"sku":"64703","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2f69a0e7c5b05cf6f9805c3a3df46e71.jpg?v=1791755285","url":"https:\/\/voomisupply.com\/products\/midland-industries-64703-hex-locknut-1-2-in-galvanized-iron","provider":"Voomi Supply","version":"1.0","type":"link"}