FMAD1234 is an SMA female to TNC female bulkhead adapter designed to enable connections between two different RF connector types that would otherwise not mate. The adapter features a nickel-plated brass body with gold-plated beryllium copper contacts, operating across a frequency range from DC to 11 GHz with a maximum VSWR of 1.3:1 and maximum operating voltage of 500 Vrms AC. Both connectors meet MIL-STD-348A interface specifications and are rated for high-temperature operation from -65°C to +165°C, with a 50 Ohm impedance and straight body geometry optimized for bulkhead mounting. This adapter is ideal for rack-mounted equipment, general-purpose RF testing, and panel-mount applications where connector protection and reliable signal transmission are required.