U4, U-4, or U04 may refer to:
Science and technology edit
- U4 spliceosomal RNA, a non-coding RNA component of the major U2-dependent spliceosome
- Haplogroup U4 (mtDNA), a human genetic group
- U4, unitary group of degree 4
- U-47700, a synthetic opioid
- U04, the ICD-10 code for severe acute respiratory syndrome
Transport edit
- U-Bahn lines
- German submarine U-4, one of several German submarines
- London Buses route U4
- U-4, the U.S. Air Force version of the Aero Commander (aircraft), a light twin-engined aircraft from Aero Design and Engineering Company
- U-4, the Japanese air self-defense force designation for the Gulfstream IV aircraft
- U4, PMTair (former) IATA airline designator
- U4, Buddha Air current IATA airline designator
Other uses edit
- U4, the former name of the Maple League of Universities
- U4, an unemployment figure released by the United States Bureau of Labor Statistics
- Ultima IV: Quest of the Avatar, a video game
See also edit
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.