Unused flexible Saturn coolant system hose assembly from the Saturn V third (S-IVB). Hose with connectors measures 12.75″ long and is sealed inside its original bag, along with its original parts tag, dated September 9, 1966, with the instruction “Do Not Open Until Ready For Use,” printed along the bottom. Part maintains the McDonnell Douglas "D" and the triangular NASA inspection stamps on the label and intact red gel seals on the fittings at the ends of the hose. In fine condition. RR Auction COA.