Casing hanger retention system

A system, comprising:

• a retention system comprising a key-slot interface, wherein the key-slot interface comprises a plurality of physically separate retention segments configured to be coupled to a first component of the system, wherein each of the plurality of physically separate retention segments is configured to move between a collapsed position in which each of the plurality of physically separate retention segments does not block movement of the first component relative to a second component of the system and an engaged position in which each of the plurality of physically separate retention segments engages and extends radially into at least one corresponding slot formed in the second component to block movement of the first component relative to the second component, wherein each of the plurality of physically separate retention segments comprises an oscillating cross-sectional shape that extends along a respective length of each of the plurality of physically separate retention segments and that extends in a circumferential direction of the first component of the system when the plurality of physically separate retention segments are coupled to the first component, and the oscillating cross-sectional shape comprises at least one peak region and at least one valley region that enables each of the plurality of physically separate retention segments to move between the collapsed position and the engaged position, wherein the cross-section is taken along a plane extending between a radial-inner surface and a radially-outer surface of the at least one retention segment, wherein the at least one retention segment comprises a spring-like member.