142-1701-611 is a 2-hole flange-mount SMA jack connector designed for field-replaceable RF and microwave applications. The connector features a brass body with gold plating over nickel and copper, beryllium copper contacts with multi-layer plating, and a Teflon insulator with conductive silicone gasket per MIL-G-83528 Type N. It operates at 50-ohm impedance across a frequency range of 0–26.5 GHz with a working voltage of 335 VRMS maximum at sea level and dielectric withstanding voltage of 1000 VRMS minimum. The connector accepts 0.015"–0.001" diameter pins with a maximum socket depth of 0.110 inches and supports 500 durability cycles minimum. It is suitable for high-frequency signal transmission in aerospace, military, and telecommunications equipment where reliable RF connectivity and environmental durability are essential.