493rd may refer to:
*
493d Bombardment Group, inactive United States Army Air Force unit
*
493d Bombardment Squadron or 93d Air Refueling Squadron (93 ARS), part of the 92d Air Refueling Wing at Fairchild Air Force Base, Washington
*
493d Fighter Squadron (493 FS), nicknamed "The Grim Reapers", part of the 48th Fighter Wing at RAF Lakenheath, England
See also
*
493 (number)
*
493, the year 493 (CDXCIII) of the Julian calendar
*
493 BC
__NOTOC__
Year 493 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Auruncus and Viscellinus (or, less frequently, year 261 '' Ab urbe condita''). The denomination 493 BC for this year h ...
{{mil-unit-dis