Helmet, Flying, Protective, Type H-4, United States Navy


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 is an example of a Type H-4 protective flying helmet issued to United States Naval and Marine aviators in the mid-1950s. The Type H-4 was a refined update of the Type H-3 with a different shape in the design of the reinforcing ridges and the addition of a cloth inner liner with earphones.

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

Donated by Mr. Harold Mull


  • HAZMAT: Cadmium
  • Helmet Shell: Fiber Glass
  • Webbing: Nylon and Cow Hide
  • Other: Rubber, brass, steel, cadmium plating, paint , plastic, foam


3-D: 24.8 × 23.5 × 24.8cm, 1kg (9 3/4 × 9 1/4 × 9 3/4 in., 2.1lb.)

Country of Origin

United States of America

Physical Description

United States Navy Type H-4 Protective Flying Helmet; gold fiberglass shell with brown rayon and cowhide inner webbing; blue manufacturer's tag (see Marks for full text) sewn on webbing of fiberglass shell; United States Naval Aviator's badge wing decal on front brow of helmet



Inventory Number