Space Shuttle Orbiter to Ground Helium Supply quick disconnect assembly, measuring approximately 9.5″ x 3.75″ x 3.75″, designed for use on the launch pad between the Helium Supply Tank and the Orbiter's Main Propulsion System prior to launch. Marked on the body: "Fairchild Stratos Division, Disconnect, Type II, 1-Inch, PN 74343000-103, DES ACT 01359, Buyer Control No. MC276-0003…Date 4-77." The outlet is protected by a red rubber cap.