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The PARKER 4-8 F5OX-SS is a stainless steel flared tube straight thread connector designed for high-pressure hydraulic and fluid system applications. It features a 37-degree flare on the tube end and an SAE O-Ring Boss (ORB) straight thread on the port end, creating a leak-resistant connection between flared tubing and threaded ports. With a maximum working pressure of 7200 psi and a temperature range of -425 degrees F to 1200 degrees F, this fitting handles demanding service conditions. The overall length is 1.38 inches and it accepts 1/4 inch OD tubing. Licensed HVAC technicians, plumbers, and fluid system mechanics install this fitting in refrigeration, hydraulic, and high-pressure gas lines where stainless corrosion resistance is required.
This connector is suited for industrial, commercial, and trade applications where flared tubing must terminate at a straight-thread ORB port. The 37-degree flare conforms to SAE J514, ISO 8434-2, and SAE 070120 standards, making it appropriate for hydraulic systems, refrigeration circuits, and process fluid lines. The stainless steel construction is preferred in corrosive environments and in applications requiring broad temperature tolerance. Fluid systems technicians and pipefitters typically specify this fitting when replacing or extending existing flare-to-ORB connections in mobile equipment, HVAC/R, and industrial machinery.
Designed as an OEM-style replacement fitting for fluid systems using 1/4 inch OD flared tubing with SAE O-Ring Boss straight-thread ports, conforming to SAE J514, SAE 070120, and ISO 8434-2.
Installation should be performed by a licensed plumber, fluid systems mechanic, or qualified HVAC/R technician. Depressurize and isolate the system completely before removing or installing any fittings. Inspect the flare seat and O-ring groove for damage before assembly, and use only a compatible O-ring in the ORB port to ensure a leak-free seal. Follow applicable industry codes and the equipment manufacturer's torque guidelines for SAE straight-thread fittings.
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