XB4 Series, Black, Red, White Push Button Head, Momentary, 22.4mm Cutout
**Heads for Push Buttons, Flush Push, Spring Return**
A range of heads for pushbuttons with flush push from the Harmony XB4 series.
Allied Electronics:
XB4 Series, Black, Red, White Push Button Head, Momentary, 22.4mm Cutout
Newark:
# SCHNEIDER ELECTRIC ZB4BA721247 Pushbutton Switch, Momentary Spring Return