Helmet, Pressure Bubble, Evans, Apollo 17


Display Status:

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Collection Item Summary:

This pressure helmet was made for and worn by astronaut Ronald Evans, Command Module Pilot of the Apollo 17 mission in December, 1972.

The Apollo pressure helmet was a transparent bubble designed by AirLock Inc. to attach to the spacesuit neck ring. It was constructed of a polycarbonate shell with a red anodized aluminum neck ring, a feed port, a vent pad and duct assembly attached to the rear and a valsalva device attached to the inner ring.

There were two configurations used on Apollo suits which were not interchangable, the earlier configuration was anodized blue, with the later configuration being anodized red.

Transferred to the National Air and Space Museum from NASA in 1974.

Collection Item Long Description:

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum



Credit Line

Transferred from the National Aeronautics and Space Administration


  • Bubble: Polycarbonate
  • Neck Ring: Anodized alumiium
  • Head rest: Beta cloth, anodized aluminium


3-D: 30.5 x 26.7 x 27.9cm (12 x 10 1/2 x 11 in.)

Country of Origin

United States of America



Inventory Number