USS Reliant (NCC-1305)

USS Reliant (NCC-1305) was a Starfleet vessel of unrevealed class, apparently in service in the 23rd century, probably no earlier than the late 2250s. (Kennedy Shipyards: Starfleet Vessel Miranda Class Starship USS Reliant NCC-1864: General Blueprints and Specifications)

Background
This vessel and registry number was on the Reliant lineage page of the blueprints and specifications made by Kennedy Shipyards.

I'm inferring the era of the ship based on the type of warp nacelles it has.