112439 is a BNC female to female bulkhead isolated adaptor designed for RF and microwave applications. The connector features 50 ohm impedance and operates across a frequency range of 0–4 GHz, making it suitable for high-frequency signal transmission. The adaptor is constructed with a brass body (nickel-plated), phosphor bronze contact pin (gold-plated), and delrin insulators, providing excellent electrical performance and durability. It utilizes a 1/2-28 UNEF-2A thread with a maximum panel thickness of 4.5 mm for secure bulkhead mounting. This isolated adaptor is commonly used in test equipment, RF instrumentation, and communication systems where reliable impedance matching and signal integrity are critical.