Abstract: The present invention provides housing member for a rotary fluid powered actuator including a cylindrical housing member having an opening in at least one end, a head member received on each open end of the housing where each head has a central aperture in generally aligned relation with the longitudinal axis of the housing, a shaft member to extend through the central aperture for rotation therein and journal means to journal the shaft in the housing adjacent each end thereof and a vane member to extend outwardly from the shaft member for rotation therewith in response to fluid pressure in the housing where the housing member includes at least one stator member, integral therewith extending radially inwardly from the sidewall of the housing and adapted to receive a seal member to provide a seal between the termination of the stator and the shaft and members extending along a portion of the length of the housing to define bolt passages, and bolt members to be received in the bolt passage where the bolt member