The Parker-Hannifin 43 Series Steel Crimp Style Hydraulic Hose Fitting is designed to provide a secure and reliable connection for hydraulic systems. This fitting is made with high-quality steel materials for durability and longevity and features a wide range of end configurations. The nut hex size is 1-3/8" and the back-up hex size is 1-1/8", making it easy to push on with force. The single piece design cuts down on complexity and leakage paths, while the no-skive technology provides quick, effective and secure production methods. This fitting is ideal for a variety of applications and is sure to provide a reliable connection for your hydraulic system. FleetPride is your First Click in Heavy Duty®.