A uni-directional Pneumatic Control Valve used to regulate the flow of Liquid Hydrogen Propellant (LH2) onboard the Saturn V (S-IVB) third stage, manufactured by Subcontractor Snaptite Inc (AERVALCO Co) Dec 1967 on behalf of Douglas Aircraft Company (Prime S-IVB) for NASA contact NAS7-101. This component was part of the pneumatic control system, which provided gaseous Helium (Ghe) pressure to actuate all S-IVB stage pneumatically operated valves with the exception of those provided as components of the J-2 engine.
Contract: NAS 7-101 (Douglas Corp S-IVB Contract), Manufacturer: Snaptite Inc (AERVALCO Co), Assy no. 527517. D.A.C spec 1859010-503. Date of Production: Dec 1967
Thanks to Scott Schneeweis for the technical description of this artifact.