The USS Nash (NCC-2010-5) was a Federation Template:ShipClass transport that was in service with Starfleet in the late 24th century. It made several journeys to Deep Space 9 in the 2370s.
The Nash transported Dr. Julian Bashir and Trill initiate Arjin from Starbase 41 to DS9 in 2370. (DS9: "Playing God")
USS Nash leaving DS9
In 2372, Keiko and Molly O'Brien were transported from Bajor to DS9 by the Nash. (DS9: "Accession")
Two agents of the Department of Temporal Investigations, Dulmur and Lucsly, arrived on DS9 via the Nash in 2373. (DS9: "Trials and Tribble-ations")
In 2375, the Nash transported Jack, Lauren, Sarina and Patrick from Deep Space 9. (DS9: "Chrysalis")
The Nash was named by the studio modelers for Erik Nash, a motion control technician at the special effects company Image G.
The Nash studio model was only seen docking with DS9 "upside-down", at least in respect to the modification as shot previously as the USS Jenolan in TNG: "Relics". This was done by producers either for aesthetics, or to create the illusion that this was a different type of ship. Since it was plainly visible as the Sydney-class model, we should assume that the ships are the same class. The reason for the upside-down flight could either be that there was no correct "up" orientation in space, so it didn't matter that the Nash pilots continuously dock as so, or possibly that the 24th century Sydney-class vessels are modified in a way that that they are rearranged to have the opposite internal structure. It was even possible that, since the Jenolan was only seen once and was in pretty bad shape at that time, that the Nash is the one being flown right-side-up.
Template:Sydney class starships