Or at least, that's one origin story. There are many others, as would only befit this hard-to-pin-down group, which is now ...

This unit develops pneumatics and fluid control products, such as cylinders, solenoid valves, pneumatic valves and manifolds, air preparation units, etc., for Emerson’s field-proven brands ASCO, ...

I don’t want nothing that looks beautifully painted.” Fittingly, they named the exhibition “Asco.” It stuck: from here on, Herrón remembered, they were known as “the Asco group.” ...