This is the HS-82MG Metal Gear Micro Servo from Hitec.

FEATURES: For small planes, gliders, electric helicopters and 1/18 scale cars

INCLUDES: HS-82MG Metal Gear Micro Servo with universal connector, 0.67" (17mm)
            diameter horn, 1.1" (29mm) double arm, 0.90" (23mm) 4-point horn
            and mounting hardware

REQUIRES: Installing in model and connecting to receiver

SPECS:    Speed: 0.12 sec/60° at 4.8V
                           0.10 sec/60° at 6.0V
          Torque: 38.88oz-in (2.8kg-cm) at 4.8V
                  47.22oz-in (3.4kg-cm) at 6.0V
          Weight: 0.66oz (19.0g)
          Size: 1.17 x 0.47 x 1.16" (29.8 x 12.0 x 29.6mm)

COMMENTS: The following replacement parts are available;
          Gear Set, HRCM6386
          Horn Set, HRCM6326

                                                                    jxs 2/26/08
                                                                         ir/jxs