The wheel in a torque converter (as modified) that is designed to receive the kinetic energy of a liquid.
NSN 5985-01-519-9295
NSN 6620-01-640-6761
NSN 6320-01-377-5701
NSN 5990-00-304-7038
NSN 6320-00-925-0558
NSN 5998-01-485-0063
NSN 6110-01-451-4326
NSN 5950-01-610-7695
NSN 5945-01-611-3267
NSN 6135-01-321-4792
NSN 5985-00-213-7171
NSN 6685-01-035-2371