Apollo-era adapter assembly from the Saturn S-IC (first stage) contract NASA Marshall (MSFC) had with Boeing—NAS8-5608. Assembly, made for the liquid helium to support propellant pressurization, measures approximately 4.5″ tall and 4.5″ in diameter, is part number 7541286 and 65B64001-107G. Also bears a red-bordered caution label on the outer bag and two cleaning tags inside, dated 1970 and 1971, with one stamped “Critical to Manned Flight.” In fine condition. Part arrived sealed in its original bag and was opened for photographic purposes. RR Auction COA.
