222117-1 is a 75 Ohm BNC bulkhead jack-jack adapter designed for RF coaxial connectivity applications. This adapter features a nickel-plated body, gold-plated center contact, and polymethylpentene dielectric material for reliable signal transmission. The connector has a diameter of 12.83 +0.13/-0.00 mm (0.505 +0.005/-0.00 in) and an inner diameter of 5.54 +0.08/-0.00 mm (0.218 -0.003/-0.00 in), with a maximum panel thickness of 6.35 mm (0.250 in). It utilizes 11/16-36.07 threading for secure panel mounting. This bulkhead adapter is ideal for panel-mount applications requiring reliable 75 Ohm impedance matching in RF communication systems.