This is a hose that conservators have removed from an A1-C spacesuit. The spacesuit was worn by various astronauts during early training sessions for the Apollo missions. The A1-C spacesuit was a modification of the Gemini G3-C and G4-C spacesuits and was only used during training until the final Apollo suit design was chosen.
It consisted of five major assemblies, the main suit, helmet, boots, gloves and neck seal.
The A1-C suit was made by the David Clark Company, and NASA transferred it to the National Air and Space Museum in 1973.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.