Type: U.S.
Navy Mark V Deep Sea Diving Helmet
Material: Solid
Brass & Copper Alloy Construction
Era: Circa
1940s–1950s Military Surplus
Condition: Vintage
Antique, Fully Restored
Own a piece of maritime history with this authentic U.S. Navy Mark V diving helmet, originally issued to deep-sea divers during World War II and the Korean War. Crafted from solid brass and copper alloy, this iconic helmet features the classic three-window faceplate design and external air control valve, making it both a functional artifact and a striking nautical décor piece.
Perfect for military collectors, nautical enthusiasts, and vintage décor, this helmet retains its original patina and craftsmanship. The restoration includes polished brass plating, resealed gaskets, and a new interior liner for display stability.
Model: U.S. Navy Mark V, standard issue helmet
Windows: Front “Equalizing Window” plus two side viewports with protective guard bars
Valves: External communications port and air control valve
Weight: Approximately 35–40 lbs (full brass construction)
Dimensions: Height 18", Width 15", Depth 16"
Finish: Restored brass with aged patina highlights
Interior: New canvas liner and leather neck dam for display stability
Markings: U.S. Navy stamped identification plates and serial number tag
Military Memorabilia Collections – WWII & Korean War relics
Nautical Home & Office Décor – Museum-quality display
Scuba Diving History Exhibits – Historical demonstration
Movie & Theater Props – Authentic deep-sea diving equipment
Man Cave & Bar Theming – Steampunk and maritime style
Unique Gift – For maritime historians and vintage collectors
Helmet Weight: 35–40 lbs / 15.8–18.1 kg
Overall Height: ~18 inches (46 cm)
Faceplate Diameter: Front viewport 8 inches (20 cm)
Connection Threads: Standard 7-bolt breastplate flange
Air Intake: Original US Navy regulator mount
Serial Number: SX-27-12345 (example)
Maker’s Plate: “U.S. Navy Mark V” brass plaque intact
1x Vintage U.S. Navy Mark V Diving Helmet
1x Restored canvas liner and leather neck dam
8-bolt breastplate display flange
Installation instructions for display
Historical information card
This helmet has undergone professional restoration: all brass surfaces polished and lacquered to preserve the patina, internal seals replaced, and window gaskets renewed. To maintain its appearance, gently dust with a dry cloth and avoid prolonged exposure to moisture.
Bring home a legendary piece of underwater exploration—order this Vintage U.S. Navy Mark V Brass Diving Helmet today! Complete your marine collection with this rare WWII-era deep-sea helmet.