The 225398-8 is a BNC bulkhead jack connector designed for RF coaxial applications with 50 ohm impedance. It features an O-crimp termination type compatible with RG 175, 176A, 75B, 161, 178A, and Belden 9221 coaxial cables. The connector has a gold-plated center contact and nickel-plated body with a Teflon dielectric, providing excellent signal integrity and corrosion resistance. The mill-type construction offers a body length of 35.71 mm (1.406 inches) and is compatible with the 220003-1 hand tool and 220106-1 interchangeable die for pneumatic crimping. This connector is ideal for RF and microwave applications requiring reliable panel-mount connections with consistent impedance matching.