Les connecteurs pour casques hélicos

U-174/U (TP-101)
Nexus plug (Nickel)
« US NATO plug »,
Diamètre : 0.285″ = 7.239mm
Diamètre réel : 0.281″ 7.137mm

HELICOPTER HEADSET / HELMET PLUG
This is NOT a NATO plug, it is a NEXUS plug.
it is not compatible with the UK NATO plug below.

TheU-93/A (TP-102)plug is the same mating shaft with a larger back shell for thicker cable.
Wiring, Tip(1) Mic low (2) Ear high (3) Mic high (4) Ear low

PLUG 671 (bronze)
« UK or EUROPEAN NATO PLUG », 7.57mm

This plug will not mate with the Nexus range, the mating shaft diameter is 0.4mm bigger.
This is a Mil spec brass plug, NSN:5935-99-946-6652.

Wiring, Tip Mic, Ring 1 Mic, Ring 2 Ear, Ring 3 Ear, (Ring 1 next to tip)

Mating socket, Socket 626, NSN:5935-99-949-1940