The robust body is made of high quality alloy steel with σт = 1 GPa (10,000 kgf / cm2).

To simplify the installation of equipment, the boat was designed using zonal blocks, which made it possible to transfer a significant amount of work from the cramped conditions of the sub's compartments directly to the workshop.

After completion of the installation, the zonal unit is “rolled” into the hull of the boat and connected to the main cables and pipelines of the ship's systems.

[7][6] The boat has a developed vertical tail unit with a streamlined boule, in which the towed antenna is located.

In the TSD Zeya in September 2002, he was transported to the ZSO Vostok, the reactor core was unloaded, before being put into medium repair.

From 2013 to 2014, she was on the territory of the Federal State Unitary Enterprise Amur Shipyard in Komsomolsk-on-Amur, awaiting repairs.

In January 2015, the Indian Navy's leadership submitted an offer to lease the Kashalot nuclear submarine after being repaired.