Cast part with a metallic functional region

The invention relates to a cast part (10, 110, 210), comprising a metallic functional region (11, 111, 211), wherein the functional region (11, 111, 211) extends in a first direction (1) from a first side (12, 112, 212) to a second side (13, 113, 213) of the cast part (10, 110, 210), wherein the cast part (10, 110, 210) has a surrounding region (16, 116, 216), which at least partially surrounds the functional region (11, 111, 211), wherein the functional region (11, 111, 211) is shaped by a friction-based process, relates to a piece of equipment, wherein the piece of equipment (30, 130) is a machine which comprises a further component (31, 131) and a device (32, 132) for securing the further component (31, 131) against twisting, wherein the device (32, 132) has a connection (33, 133) between the functional region (111, 211) of the cast part (110, 210) and the further component (31, 131), and also relates to a method for producing the piece of equipment (30, 130), wherein the metallic functional region (111, 2