Blue anodized cover made by Airlock, Inc. for the feedport assembly on the Apollo space suit helmet, measuring 1.75″ in diameter, identified "Part No. A6L-102006-05…S/N 1082." Sealed in plastic with a "Do Not Open / Controlled Environmental Facility" label, as well as a NASA "Accepted Material" card and later bag with deaccession label. 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.