Tubing Hanger, Threaded (Mandrel) : A mechanism used to support a tubing string in a tubing head by means of a male or female thread attached to the tubing. (Spec 6A)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}