USS Triton (SSRN/SSN-586) Submarine Model. Dive with the USS Triton (SSRN/SSN-586) Submarine Model again in this handcrafted 20-inch submarine. Each piece is carved from wood and hand painted to provide a piece you’ll love. Length – 20 inches. US Veteran Owned Business. The product is not intended to be used by children 12 years and younger. USS Triton (SSRN/SSN-586), the only member of her class, was a nuclear powered radar picket submarine in the United States Navy. She had the distinction of being the only Western submarine powered by two nuclear reactors. Triton was the second submarine and the fourth vessel of the United States Navy to be named for the Greek god Triton, the nomenclature being unusual at the time in that U. Navy submarines were usually named for various species of fish.