This Futaba FUAS4168 servo case set is intended as a direct enclosure and mounting accessory for the BLS254 and BLS274SV series. It provides a matched shell and aligned mounting features to retain those Futaba servo models firmly within compact bays of scale RC models.
Fitting is simple: remove the servo from its current mounting, place it into the case so the output spline and connector openings align, then secure with the model's original screws or the case bosses. The design helps route cables cleanly and restrains the servo body against vibration during use.
For tuning and routine checks the case preserves a reliable mounting position which can minimise changes when adjusting steering endpoints and centring. It also makes swapping the listed servos straightforward without altering mount geometry.
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