| (as completed) | |
| Displacement | 33,800t normal, 38,500t full load |
|---|---|
| Length | 201.4m pp, 213.4m oa |
| Width | 29.0m |
| Draught | 9.1m |
| Machinery | 4-shafts geared turbine, 21 boilers (15 for oil only, 6 for complex), 80,000shp. |
| Fuel | Oil 3400t, Coal 1600t |
| Speed | 26.5kt |
| Range | 5500nm/16kt |
| Armour | 100-300mm belt, 300mm turret, 300mm barbette, 38-75mm deck |
| Armament | 8-41cm/45cal gun (2x4), 20-14cm/50cal gun, 4-8cm/40cal AA gun, 8-53cm TT (4 above wl, 4 below wl) |
| Complement | 1333 |
| (1936) | |
| Displacement | 39,120t standard, 42,753t trial |
| Length | 221.1m pp, 224.9m oa |
| Width | 32.96m |
| Draught | 9.5m |
| Machinery | 4-shafts geared turbine, 10 boilers 82,000shp |
| Fuel | Oil 5600t |
| Speed | 25kt |
| Armour | 300mm belt, 70mm upper deck, 125mm middle deck, 300mm+125mm barbette (above deck), 75mm+210mm (below deck), 355mm turret, 100-370mm CT |
| Armament | 8-41cm/45cal gun (2x4), 18-14cm/50cal gun, 8-12.7cm/40cal AA gun (2x4), 20-25mm AA, 3 aircraft |
| Complement | 1368 |
| Name | Plan | Builder | Laid down | Launch | Complete | ||
|---|---|---|---|---|---|---|---|
| Nagato | FY1916 | Kure NYd | 1917. 8.28 | 1919.11. 9 | 1920.11.25 | BB | 1945. 9.15 disc 1946. 7.29 scuttled (A-Bomb exam, Bikini atoll) |
| Mutsu | FY1917 | Yokosuka NYd | 1918. 6. 1 | 1920. 5.31 | 1921.10.24 | BB | 1943. 6. 8 Lost (magazine explosion, Hiroshima bay) [34.05N, 132.20E] 1943. 9. 1 disc |