In the last few years, interest in producing more locally and on a smaller scale has increased in the face of sustainability and reliability concerns regarding global supply chains. Because collaborating may help smaller local producers become more competitive, this paper is meant to contribute to research on production networks of heterarchical, i.e. non-hierarchical, Micro and Small Enterprises (MSE) from the manufacturing sector. Furthermore, advances in collaborative technologies are set to enhance the coordination of such networks, but the requirements of this use case need to be well understood in order to optimise IT solutions for it. One such requirement is the handling of Quality Management (QM), which is why a literature review on QM in production networks of MSEs was conducted in a previous publication. The review showed that very few QM concepts specifically for MSEs in networks are available. Therefore, this publication attempts first to identify the relevant factors of QM in MSEs and QM in production networks (and supply chains) separately and then, in a second step, find their overlap and differences. To that end, two literature searches were conducted, and the resulting publications were coded using qualitative text analysis software. Only publications containing empirical studies were selected for the review, and only their empirically proven results were used in the analysis. Thus, the resulting factors positively associated with or affecting quality can deliver reliable implications for implementing QM in the described setting of MSEs in a production network.