The purpose of this paper is to locate theories surrounding the concept of “consubstantialité des rapports sociaux” (co-substantiality of social relations or CSSR) (Kergoat, on 1978-2012) within current tensions in feminist thought on intersectionality. Noting the persistent oppositions that mark the intersectionality literature, this article shows how the notion of CSSR, by virture of its contextual origins, distinguishes itself from other existing theoretical frameworks. On the one hand, this concept interprets the interlocking of different systems of oppressions from a dynamic understanding of power relations. On the other hand, the materialist feminist’s interpretations of gender relations propose to rework key Marxian contributions, which stands in opposition to the culturalist rejection of the Marxian legacy. Finally, this contribution highlights the sociological relevance of this concept in order to understand the dynamic relations between power social relations.