Omron A3D Series Panel Mount Indicator, 9 x 9mm Mounting Hole Size, IP40

Cylindrical push-button switches and indicators for panel mounting
SPST normally open switch units with LED illumination
Indicator only units with LED illumination

Switch & indicator lenses are not interchangeable
Indicator units and switch body's typically require a lens for completion, for lenses see typically stock no's 3664225 (indicator) and 3663991 (switch)

Cylindrical 8mm dia. Subminiature Series Featuring Short Mountiing Depth

Round, Square and rectangular LED pushbutton units
Indicator types also available
Requires only 18mm mounting depth
Efficiency in wiring improved by terminals arranged on the same level
All LEDs, lamps, lenses, and legends replaceable without tools