7452521 - 

RS IP65 Indicators and Push Button Switches - ADA16S Series (16mm)
Sub-assembled, modular construction, illuminated or non illuminated, momentary and alternate action, round, square and rectangular Push Button Switches and matching Pilot Light Indicators to fit industry standard 16mm diameter cut-outs in panels with a thickness between 0.5 and 5mm. Available in a choice of raised bezel profile which prevents accidental touch or flush mounted versions that enable the Push Button Switch or Pilot Light Indicator to be mounted almost flush with any panel. Quick and easy to assemble, once fully constructed each Push Button Switch or Pilot Light Indicator has a waterproof panel sealing to IP65.