Desirable spacecraft thruster valve made by Moog, Inc., measuring 2.5″ x 2.5″ x 1.75″, with the manufacturer's label on the body: "Mod. 51E116, Ser. 002, Part No. A38129." In fine condition.
Moog has developed technologies for satellites and space vehicles in addition to various aspects of defense such as missiles, weapons/stores management, and turreted weapon systems. The company has assisted in the manufacturing of systems and components for the Apollo and Space Shuttle programs, the International Space Station, the Deep Space 1 spacecraft, and the Gravity Probe B satellite.