Futaba S3001BB

Specifications:

Size: 40,4 x 19,8 x 36,0 mm 
Speed (4.8V no load): 0.21sec/45 degrees
Speed (6V no load): 0.17sec/45 degrees
Stall Torque (4.8V): 2.4 kg/cm
Stall Torque (6V): 3,0 kg/cm)
Weight: 45gr.
Operating Voltage: 4,8 - 6 Volts