Parker Hannifin Corporation 10643-5-4 Hose Assembly

Parker Hannifin 10643-5-4 Hose Assembly is a compact fluid-connection component that couples a 1/4-inch hose to a 5/16-inch tube, providing a direct hose-to-tube transition within a single assembly. Manufactured by Parker Hannifin Corporation, the part is identified as 10643-5-4 and is associated with the internal code KP81301. The design specifies a 1/4" hose end and a 5/16" tube end, enabling quick integration into hydraulic or fluid-transfer layouts where these diameters are required. This hose assembly supports streamlined routing in tight spaces and helps maintain a continuous flow path by joining a flexible hose to a rigid tube with matching diameters. Use cases include inline connections in systems that require a hose-to-tube junction between components with 1/4" hose and 5/16" tube ports, and it aligns with Parker's standardization of fittings and assemblies for interchangeability with compatible Parker components. For installation, verify that the mating fittings correspond to the 1/4" hose and 5/16" tube specifications to ensure proper fit within the fluid-transfer path. The model number 10643-5-4 and the associated KP81301 reference help identify the exact hose-to-tube configuration within Parker’s cataloging system.