Blue anodized feedport valve assembly and cover made by Airlock, Inc. for the Apollo space suit helmet, measuring 1.75″ in diameter. The darker blue inner valve is identified as "Assy A6L-102006-00, SN-1170," and has two rubber gaskets with a spring-loaded mechanism. The lighter blue cover is identified as "Assy A6L-102006-005, SN-1012." In fine condition. The feedport was a valve built into the Apollo helmet which would allow an astronaut to drink from the spacecraft's water dispenser while still wearing his fully pressurized suit.
Provenance: The Spaceflight America Museum and Science Center in Prince Frederick, MD.