Miniature metal framed Toggle switch with solder contacts.
This 3 POSITION 4PDT On-On-On switch is rated for 5amps @ 120volts.
Comes with hardware for mounting in 1/4″ round hole.
The switch is about 0.844″wide x 0.5 tall & will protrude 0.7″ behind the panel.
See SA-822 Switch drawing for terminal/switching details.