T-54 Main Battle Tank

The T-54 is a famous Russian main battle tank. The first T-54 was the T-54 model 1945. The T-54-1, T-54-2, and T-54-3 followed. The D-10TK was ballistically the same as the D-10T firing at a rate of 5 to 6 rounds per minute. The T-54K was a command version of the T-54-3.
Variants:

1.
Name: T-54/Object 137
Type: Medium Tank
Origin: Soviet Union
Year: 1945
Produced: 3

Length: 6.27 Meters
Width: 3.27 Meters
Height: 2.5 Meters
Weight: 35500 Kilograms
Speed: 44 km/h

Crew: 4

Primary Armament:
-100 mm D-10TK
Secondary Armament:
-7.92 mm DT
-12.7 mm DSK

Gun Flexibility:
3° Depression
17° Elevation

Armor:
-Hull
120 mm Front
90 mm Side
45 mm Rear
15 mm Top
15 mm Bottom
-Turret
180 mm Front
150 to 90 mm Side
75 mm Rear
15 mm Top (90 mm Hatch, 20 mm on top of hatch)

2.
Name: T-54A/Object 137G (T-54AK/Object 137GK is a command version of this variant,,, T-54AM is modernized T-54A and T-54AMK is the command version)
Type: Medium Tank
Origin: Soviet Union
Year:  1955
Produced: 4602

Length: 6.04 Meters
Width: 3.27 Meters
Height: 2.4 Meters
Weight: 36400 Kilograms
Speed: 50 km/h (30 km/h off road)

Crew: 4

Primary Armament:
-100 mm D-10TG
Secondary Armament:
-7.62 mm SG-43 (2)
-12.7 mm DSK

Gun Flexibility:
18° Elevation
5° Depression

Armor:
-Hull
100 mm Front
80 mm Side
45 mm Rear
30 mm Top
20 mm Bottom
-Turret
200 mm Front
160 mm (104 mm Upper Rear)
65 mm Rear
30 mm Top

3.
Name: T-54B/Object 137G2 (T-54BK/Object 137G2K is the command variant)
Type: Medium Tank
Origin: Soviet Union
Year: 1956
Produced: 1575

Length: 6.04 Meters
Width: 3.27 Meters
Height: 2.4 Meters
Weight: 36000 Kilograms
Speed: 50 km/h (30 km/h off road)

Crew: 4

Primary Armament:
-100 mm D-10T2S
Secondary Armament:
-7.62 mm SGMT (2)
-12.7 mm DSK

Gun Flexibility: °

Armor:
-Hull
100 mm Front
80 mm Side
45 mm Rear
30 mm Top
20 mm Bottom
-Turret
200 mm Front
160 mm (104 mm Upper Rear)
65 mm Rear
30 mm Top

4.
Name: T-54K/Object 137K
Type: Medium Tank
Origin: Soviet Union
Year: 1952
Produced:

Length: 6.04 Meters
Width: 3.27 Meters
Height: 2.4 Meters
Weight: 35500 Kilograms
Speed: 50 km/h (30 km/h off road)

Crew: 4

Primary Armament:
-100 mm D-10T
Secondary Armament:
-7.62 mm DT

Gun Flexibility: °

Armor:
-Hull
120 mm Front
-Turret
200 mm Front

5.
Name: T-54M/Object 137M (T-54MK/Object 137MK is the command version)
Type: Medium Tank
Origin: Soviet Union
Year: 1977
Produced: ???

Length: 6.04 Meters
Width: 3.27 Meters
Height: 2.35 Meters
Weight: 36500 Kilograms
Speed: 50 km/h (35 km/h off-road)

Crew: 4

Primary Armament:
-100 mm D-10T2S
Secondary Armament:
-7.62 mm PKT

Gun Flexibility: °

Armor:
-Hull
100 mm Front
-Turret
200 mm Front

6.
Name: T-54M (Object 139)

Type: Medium Tank
Origin: Soviet Union
Year: 1954
Produced: 1

Length: 6.04 Meters
Width: 3.27 Meters
Height: 2.4 Meters
Weight: 36000 Kilograms
Speed: 50 km/h (35 km/h off road)

Crew: 4

Primary Armament:
-100 mm D-54T
Secondary Armament:
-7.62 mm SGMT (2)

Gun Flexibility: °

Armor:
-Hull
100 mm Front
-Turret
200 mm Front

Sources:
http://ftr.wot-news.com/2014/07/14/t-54-model-1945-versus-type-59/
http://www.alternatewars.com/BBOW/Tanks/Russian_T-54.htm
http://forum.valka.cz/topic/view/48018#402820
http://forum.valka.cz/topic/view/116379#402885
http://forum.valka.cz/topic/view/116428#402960
http://forum.valka.cz/topic/view/40100#402877
http://thetankmaster.com/english/afv/9a52_1r.asp