The USS Nash (NCC-2010-5) was a 24th century Federation Sydney-class starship operated by Starfleet. This transport made several trips to and from Deep Space 9 in the early and mid-2370s. (DS9: "Playing God", "Accession", "Trials and Tribble-ations", "Chrysalis")
|USS Jenolan • USS Nash|
In the script of "Playing God" the Nash was simply identified as a personnel transport.  In the script of "Accession" the Nash specified as a Bajoran transport.  It was called a Federation transport in the script of "Trials and Tribble-ations"  and a Starfleet transport in "Chrysalis".  The Nash was named by the studio modelers for Erik Nash, a motion control technician at the special effects company Image G. (Cinefantastique, Vol 25 #6/Vol 26 #1, p. 102)
A legible picture of the studio model labeled as the Nash was first seen in the above-mentioned magazine Cinefantastique of December 1994, p.102. The name and registry are derived from there. The Nash studio model was only seen docking with DS9 "upside-down", at least in respect to the models previous appearance as the USS Jenolan in TNG: "Relics". The placement of the Nash's name and registry decals however, seemed to indicate that the Jenolan appearance was the correct orientation for this ship. For further information on the studio model, see: SD-103 model.
It's registry number, "NCC-2010-5", harkened back to the one the model was endowed with in its previous use as the USS Jenolan (NCC-2010) in "Relics", and as far as in-universe usage of the Starfleet registry numbering system went, an odd one, as this was the only time that a ship was given a number of another class vessel addended with what appeared to be a follow number.