MIL-PRF-62368C(AT)
3.2.6 Dissimilar metals. Unless suitably protected against electrolytic corrosion,
dissimilar metals shall not be placed in direct contact. When protection is used, it shall be such
type that a low impedance path is offered to radio frequency currents (see 4.5.1).
3.3 Construction. The motor and the output shaft shall conform to the envelope
dimensions and interfaces of Drawing 12265908 (see 4.5.1 and 4.5.2).
3.3.1 Backlash. Backlash shall be not more than 3 degrees (°) (see 4.5.1).
3.3.2 Bearings. Bearings shall be suitable for their intended purpose. Bearings which
are exposed to the environment shall be of the sealed type (see 4.5.1).
3.3.3 Moisture pockets. Pockets, wells, and traps in which water or condensed water
vapor can collect shall be avoided. Lead wire entry shall be sealed to prevent entrance of
contamination into the motor (see 4.5.1).
3.3.4 Standard parts. Standard utility parts, such as screws, bolts, nuts, cotter pins, etc.,
shall be selected in accordance with the applicable guidelines of MIL-HDBK-454 (see 4.5.1).
3.4 Performance. Unless otherwise specified herein, the motor shall meet all
performance requirements of this specification with an applied voltage of 24 ±0.5 volts (V)
direct current (dc), and with the motor flange mounted on a 0.13 by 1.88 by 3 inch (in.) (3.3 by
7.8 by 76.2 millimeters (mm)) thick aluminum alloy plate.
3.4.1 Rotation of output shaft. The shaft rotation, as viewed from the shaft end, shall be
in a counterclockwise (CCW) direction with positive voltage applied to plus (+) terminals of the
filter. Reversing lead polarity shall reverse shaft rotation (see 4.5.3).
3.4.2 No load speed. The no load speed of the motor shall be no more than
36 revolutions per minute (rpm) (see 4.5.4).
3.4.3 Zero torque current. The zero torque current of the motor shall be no more than
0.5 amperes (A) dc (see 4.5.5).
3.4.4 Speed and current at 640 ounce-inch (oz-in.) (4.52 Newton-meter (N-m)). With
the torque at 640 oz-in., the speed shall be no less than 22 rpm in either direction, and the current
shall be no more than 1.5 A dc (see 4.5.6).
3.4.5 Speed and current at 950 oz-in. (6.71 N-m). With the torque at 950 oz-in., the
speed shall be no less than 15 rpm in either direction, and the current shall be no more than
2.5 A dc (see 4.5.7).
3.4.6 Stall torque and current. The stall torque shall be no less than 1590 oz-in.
(11.3 N-m) and the stall current at stall torque shall be no more than 7 A dc. The motor shall
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