List of aviation headset connectors

The following electrical connectors are commonly used in aviation headsets:

  • Phone connectors
    • A pair of plugs, known as "GA" or general aviation plugs. 1/4-inch plug for audio (PJ-055), and a 3/16-inch plug for the microphone (PJ-068)
    • U-174/U (Nexus TP-101), U-93A/U (Nexus TP-102), and Nexus TP-120, also known as US NATO, commonly used in helicopters, with a diameter of 0.281 in (7.1 mm) and length 0.761 in (19.3 mm). The TP-120 (also known as J11) is standard for external jack plugs on most Boeing and Airbus airliners, used by ground-crew
    • U-384/U (Nexus TP-105), similar to U-174/U but with 5 conductors and slightly longer length of 0.901 in (22.9 mm)
    • Type 671, also known as UK NATO or European NATO 10H/18575, with a diameter of 7.57 mm (0.298 in). NATO Stock Number 5935-99-946-6652.
  • XLR 5, used internally on Airbus aircraft
  • REDEL 6-pin connector by LEMO, known as "LEMO plugs". Most Cirrus aircraft use this connector.
  • Fischer 8-pin connector, used in Agusta helicopters
  • Neutrik neutriCON 8-pin connector

The XLR, LEMO and Fischer plugs are able to supply power for active noise cancellation.

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