Patent ID: 8156633

Claim:
A head stack assembly (HSA) comprising: an actuator including an actuator body and an actuator arm extending from the actuator body, the actuator arm including a tooling hole and a mass-reduction opening and defining an actuator arm thickness adjacent the mass-reduction opening; a head gimbal assembly (HGA), attached to the actuator arm, the HGA including a read head and a suspension assembly supporting the read head; a transport comb comprising: a comb body; an alignment pin extending from the comb body into the tooling hole of the actuator arm; at least one separator finger extending from the comb body, the separator finger in contact with the suspension assembly of the HGA with the transport comb in a second angular orientation with respect to the actuator arm, the separator finger not in contact with the suspension assembly of the HGA with the transport comb in a first angular orientation with respect to the actuator arm; a restraining tower extending from the comb body into the mass-reduction opening of the actuator arm, the restraining tower including a first lobe that fits within the mass-reduction opening with the transport comb in the first angular orientation, the first lobe not fitting within the mass-reduction opening with the transport comb in the second angular orientation; and a first neck that fits within the mass-reduction opening with the transport comb in the first and second angular orientations, the first neck having a neck height that is greater than the actuator arm thickness.