Argo-Tech kept commercial and military aircraft aloft with its high-performance fuel-flow devices. It built main engine fuel pumps and systems, airframe fuel pumps, and various ground fuel distribution products. Through its Carter Ground Fueling division, Argo-Tech also made ground refueling equipment. Customers included the US Army and Air Force; engine and airframe makers such as Airbus, Boeing, GE Aircraft Engines, and Lockheed Martin; and aerospace distributor Upsilon International. Argo-Tech was a subsidiary of diversified manufacturing giant Eaton. It was eventually integrated into Eaton's Aerospace segment.