{"product_id":"parker-66hd-4-4-compression-tube-connector-1-4-in-brass","title":"Parker 66HD-4-4 Compression Tube Connector 1\/4 in Brass","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PARKER 66HD-4-4 is a brass compression tube connector designed to join tubing to female NPT threaded ports in fluid and gas distribution systems. It features a 1\/4-inch thread size with compression-to-FNPT end connections, making it suitable for creating secure, leak-resistant joints without soldering or welding. Rated to a maximum working pressure of 2100 psi, this connector is built for demanding applications where pressure integrity is critical. Licensed plumbers, HVAC technicians, and instrumentation specialists routinely specify this fitting type in control line and refrigerant-adjacent tubing assemblies.\u003c\/p\u003e\n\u003cp\u003eThis connector is used in residential and commercial plumbing, HVAC control tubing, pneumatic instrument lines, and refrigeration service piping where a compression-style connection to a female NPT port is required. The all-brass construction resists corrosion and holds up across a wide temperature range, from -65 degrees F to 121 degrees C (approximately 250 degrees F), making it adaptable to both low-temperature and moderate high-temperature service environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCompression x FNPT end connections for tool-friendly, no-solder installation\u003c\/li\u003e\n  \u003cli\u003eBrass construction provides corrosion resistance in fluid and gas service\u003c\/li\u003e\n  \u003cli\u003e2100 psi maximum working pressure for high-pressure line applications\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch thread size fits standard FPT ported valves, manifolds, and equipment\u003c\/li\u003e\n  \u003cli\u003eWide service temperature range: -65 degrees F to approximately 250 degrees F\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation fitting for systems requiring a 1\/4-inch compression-to-FNPT brass connector in fluid, gas, or pneumatic tubing circuits.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis fitting is installed by licensed plumbers or HVAC technicians following applicable IPC and mechanical code requirements. Before installation, shut off all pressure to the line being serviced and verify the tubing is properly cut, deburred, and squared. Hand-tighten the compression nut onto the fitting body, then snug with a wrench — do not over-torque, as brass fittings are susceptible to thread damage. Verify for leaks at working pressure before returning the system to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Connector\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connections\u003c\/strong\u003e: Compression x FNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: FPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 2100 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Temperature\u003c\/strong\u003e: -65 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Temperature\u003c\/strong\u003e: 121 degrees C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: PARKER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66HD-4-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51542504276274,"sku":"66HD-4-4","price":27.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/140f74c4eb2285dc7ba621426bdca511.jpg?v=1785902249","url":"https:\/\/voomisupply.com\/products\/parker-66hd-4-4-compression-tube-connector-1-4-in-brass","provider":"Voomi Supply","version":"1.0","type":"link"}