The term "NAR" doesn't refer to a Navy ship - it's the standard Navy acronym for Naval Air Reserve.
Could mean, United States Ship (USS). Example of use; USS Saratoga (a US Navy Ship).
The USS Constitution is the oldest comissioned ship in the US Navy. The USS Constitution is "Old Ironsides" and is the oldest ship still commissioned by the U.S. Navy.
An SH is a Ship's Serviceman (Barbers, Shopkeepers, etc.). An SHCS is a Senior Chief (E-8) Ship's Serviceman (read Ship's Serviceman Chief Senior).
I haven't heard that term when relating to the US Navy. But in the Royal Navy SDG is a scubadiver
SS is short for Steam Ship and used on civilian ships. NS would be Nuclear Ship and there was at least one civilian nuclear powered vessel. US Navy ships carry the prefix of USS for United States Ship. British Navy ships have HMS for Her Majesty's Ship.
United States.
Landing Helicopter Assault
Could mean, United States Ship (USS). Example of use; USS Saratoga (a US Navy Ship).
A large US Navy ship.
The USS Constitution is the oldest comissioned ship in the US Navy. The USS Constitution is "Old Ironsides" and is the oldest ship still commissioned by the U.S. Navy.
In the US Navy, USS stands for United States Ship. It is a prefix used to designate a ship as belonging to the United States Navy. For example, USS Arizona or USS Enterprise.
An SH is a Ship's Serviceman (Barbers, Shopkeepers, etc.). An SHCS is a Senior Chief (E-8) Ship's Serviceman (read Ship's Serviceman Chief Senior).
USS Cole
PCU stands for Pre-Commissioning Unit in the context of a US Navy ship. It is used to designate a ship that is currently under construction and has not been formally commissioned into active service yet. The PCU prefix is typically dropped once the ship is commissioned and officially enters service.
Landing ship tank-type of vessel
The logo for the US Navy is a bald eagle with spread wings, stood in front of the US flag. The logo for the US Navy Seals, however is a bald eagle on an ancor, in front of a ship.
USS Vincennes