The Alfagomma X-MNPT Interlock Inserts are straight, carbon steel fittings designed for two-piece applications, featuring an NPTF male 60° seat with interlock functionality for spiral wire reinforced hoses. These inserts are part of the X Series, specifically engineered to provide a secure connection in high-pressure environments. Ferrules are critical components used to secure the hose to the fitting, offering a leak-proof seal. In this case, the ferrules are interlock-style, which require both internal and external skiving of the hose to allow the ferrule to grip firmly. The key difference between two-piece and one-piece fittings is that two-piece fittings consist of a separate hose end and fitting, offering easier installation, maintenance, and replacement, while one-piece fittings are solid, non-separable components. The X-MNPT Interlock Inserts are designed to work with interlock ferrules, such as the XF1 or XF2, to ensure optimal performance and reliability for spiral wire reinforced hoses in demanding applications.