Ha. 19 (Japanese Midget Submarine)
IJN submarine beached at Pearl Harbor 1941 in Key West, Florida. Added to the National Register in 1989, and a National Historic Landmark.




What it is
HA. 19 is a historic Imperial Japanese Navy Type A Kō-hyōteki-class midget submarine that was part of the Japanese Attack on Pearl Harbor on 7 December 1941. The submarine's crew was ordered to enter Pearl Harbor, attack the moored American warships with its two torpedoes and then scuttle her with explosives. However, the crew was unable to enter the harbor due to navigational difficulties, and the submarine ran aground and was captured by American forces.
Text from Wikipedia, CC BY-SA 4.0.
The record
| Property type | Structure |
| Address | NAS Key West, Key West, FL |
| County | Monroe County |
| Listed | Jun 30, 1989 |
| Listed for | Military |
| Level of significance | National |
| Also known as | Japanese Midget Submarine "C" |
| Reference number | 89001428 |
| Type of place | midget submarine, preserved watercraft |
| Designations | National Historic Landmark |
| Contributing resources | 1 structure |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | NAS Key West, Key West, FL |
| Coordinates | 24.5401° N, 81.7901° W · Directions ↗ |
| Also in Key West | 22 listed places in Key West → |
| Nearest national park unit | Dry Tortugas National Park · 68 miles · on Park Atlas |
Explore
Map
Nearby in Monroe County
Public land around it
| Key West National Wildlife Refuge ↗National Wildlife Refuge, U.S. Fish and Wildlife Service | About 3 miles away210,597 acres |
Wilderness Atlas publishes a centroid and an acreage for each unit, not a boundary line. Distance here is measured to a circle of the same area drawn around that centroid, so treat it as roughly right rather than surveyed.
Local history books for Key West
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Guidebooks to historic places in Florida
- Florida's Museums and Cultural AttractionsMurray D. Laurie and Doris Bardon, 2016Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
When was Ha. 19 (Japanese Midget Submarine) listed on the National Register?
Jun 30, 1989. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
Where is Ha. 19 (Japanese Midget Submarine)?
NAS Key West, Key West, Monroe County, Florida. The nearest national park unit is Dry Tortugas National Park, 68 miles away.
Source: Dry Tortugas National Park
Where is the nomination form for Ha. 19 (Japanese Midget Submarine)?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Is there cell service at Ha. 19 (Japanese Midget Submarine)?
FCC coverage maps show Verizon 5G at the listed point. Coverage indoors and behind old masonry is another matter.
Source: FCC Broadband Map
Sources
Location, type and contributing counts come from the National Park Service's National Register spatial data. Listing dates come from the National Register office's spreadsheet where it carries the listing. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 89001428. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place. The description under "What it is" is the opening of the Wikipedia article, CC BY-SA.