TE Connectivity Tactile Switches – FSM 6 x 6 Series – TE Connectivity 1977263-1, A non-illuminated momentary action push button tactile switch from TE Connectivity’s FSM 6 x 6 Series. Designed with a low profile, round green button and Off/(On) switch position. TE Connectivity 1977263-1 Tactile Switch FSM 6 x 6 FSM1LP Green