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The VALUE COLLECTION 16377 is a steel flared tube connector designed for use in hydraulic, pneumatic, and fluid transfer plumbing lines. This fitting joins a 3/8 inch OD flared tube to a 1/4-18 NPTF threaded port using a 37-degree flare seat on one end and a National Pipe Taper Fuel thread on the other. The 37-degree flare angle is the standard used in SAE and JIC hydraulic fittings, providing a reliable metal-to-metal seal without the need for thread sealant on the flare side. Licensed plumbers, pipefitters, and HVAC technicians regularly work with this connector in refrigerant piping, fuel line assemblies, and hydraulic systems.
This connector is suited for residential and light commercial applications where a flared tube must transition to an NPTF pipe thread port. Common install scenarios include fuel supply lines, hydraulic system manifolds, and refrigeration or HVAC line sets where a 3/8 inch OD copper or steel tube meets a 1/4-18 threaded fitting port. The package contains 5 pieces, making it practical for service calls that require multiple connections or replacements in a single visit.
Designed as an OEM-style replacement or new-installation connector for systems using 3/8 inch OD flared steel tubing with a 1/4-18 NPTF threaded port interface.
This fitting should be installed by a licensed plumber, pipefitter, or HVAC technician familiar with flare connections and NPTF thread standards. Always depressurize and drain the line before removing or installing any tube fitting. The flare side requires a properly flared tube end — inspect the flare for cracks or deformation before assembly. NPTF threads are designed for dry-seal connections, but follow applicable IPC or IFGC requirements for the specific fluid or gas being conveyed.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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