#6 Steel Flare Plug

The AEROQUIP #6 Steel Flare Plug is a compact, corrosion-resistant fitting designed for reliable hydraulic and pneumatic system closure. Built from zinc oxide-coated steel, this hex head plug delivers dependable sealing performance in demanding fluid power applications where durability and pressure retention are non-negotiable.

The #6 AN (Army/Navy) designation indicates a ⅜-inch body diameter, standard across military, aerospace, and industrial hydraulic systems. The flare plug design accepts a JIC 37-degree flare connection, widely used in high-pressure fluid lines where vibration resistance and leak-free performance are critical. The zinc oxide finish provides corrosion protection in humid, salt-laden, or chemically aggressive environments—essential for offshore equipment, aviation systems, and mobile hydraulics exposed to variable weather conditions.

Technicians and equipment operators rely on AEROQUIP #6 Steel Flare Plugs in agricultural hydraulic systems, construction equipment, marine vessel hydraulics, and aerospace ground support gear. The compact form factor and hex head design enable straightforward installation and removal with standard wrenches, while the steel construction withstands the thermal cycling and pressure fluctuations common in field-deployed systems. This plug is ideal for sealing unused ports, protecting system integrity during maintenance, or replacing damaged or leaking closure fittings.

AEROQUIP has established itself as a trusted supplier of fluid power connectors and fittings for over 70 years, with products specified in military, commercial, and OEM applications worldwide. This #6 Steel Flare Plug meets established AN and JIC hydraulic standards, ensuring compatibility across systems that call for precision-engineered closure components.