Ranks - Enlisted Personnel
No Insignia Private	Private	Private First Class	Specialist *	Corporal
PV1 - E-1	PVT - E2	PFC - E-3	SP4 - E-4	CPL - E-4
Sergeant	Staff Sergeant	Sergeant First Class	Platoon Sergeant	Master Sergeant
SGT - E-5	SSG - E-6	SFC - E-7	PSG - E-7	MSG - E-8
First Sergeant	Sergeant Major	Command Sergeant Major	Sergeant Major of the Army	* Specialists begin at grade 4, but additional grades may be earned [such as SP5 & SP6].
1SG - E-8	SGM - E-9	CSM - E-9	SMA - E-9
Ranks - Warrant Officers
Warrant Officer 1	Chief Warrant Officer 2	Chief Warrant Officer 3	Chief Warrant Officer 4	Chief Warrant Officer 5
W-1	CW2 - W-2	CW3 - W-3	CW4 - W-4	CW5 -W-5
Ranks - Officers
Second Lieutenant	First Lieutenant	Captain	Major	Lieutenant Colonel
2LT - O-1	1LT- O-2	CPT - O-3	MAJ - O-4	LTC - O-5
Colonel	Brigadier General	Major General	Lieutenant General	General
COL - O-6	BG - O-7	MG - O-8	LTG - O-9	GEN - O-10
Designations for Civilians & Other Personnel
A civilian not employed by or enlisted in the US Army, but who provides support to the Team.	Civilian employee of the US Army. GS followed by a number indicates grade, as in "GS7".	Technical Sergeant [a rank of the United States Air Force]	Civilian employee of the US Army. WG followed by a number indicates grade, as in "WG6".
CIV	GS	TSGT	WG
Source for Rank: US Army Info Site                            http://www.us-army-info.com/pages/ranks.html