JS Natsushio (SS-584) was the second ship of the Harushio-class submarines of Japan Maritime Self-Defense Force.

Meanwhile, the type, dual vibration-damping support of the anti-vibration support or main engine of the main motor, the auxiliary equipment and pipe systems, static power supply, and rectification of the hole opening on the bottom of the ship.

[1] Natsushio was laid down at Kawasaki Heavy Industries Kobe Shipyard on 8 April 1988 as the 1987 plan 2400-ton submarine No.

[citation needed] On 3 August 1997, Natsushio sank the target ship Nagatsuki north of Wakasa Bay.

She had participated in ten Maritime Self-Defense Force exercises and eight simulated combat trainings between submarines.