Marquardt 5000.0501 Round Momentary Pushbutton 4A IP54 SPNO Off(On...

Marquardt-Round-Momentary-Pushbutton-4A-IP54-SPNO-Off-On-Black-with-Keyway-Marquardt-5000-0501-p-A-round-pushbutton-from-Marquardt-with-an-efficient-contact-system-To-improve-stability-this-switch-requires-a-keyway-notch-in-the-panel-cut-out-p-Marquardt-5000-0501-Round-Momentary-Pushbutton-4A-IP54-SPNO-Off-On-Black-Keyway

Price: 5.26 from Rapid Online Rapid Electronics Ltd.