Your process for avoiding counterfeit parts needs to be directly proportional to the risk presented by counterfeit parts for your products. For many organizations making the decision to only buy from original equipment manufacturers (OEMs) and approved distributors is all they need for this process. When it comes to configuration management, this again is going to depend on your specific internal product documentation (such as drawings, test plans, etc.) but in general will require that you have controls in place to make sure that people have the right documents at the right time, control the approval of changes and ensure that changes are applied to the right hardware associated with the documents.
You can learn more about counterfeit parts control in the article: Practical guidance on preventing counterfeit parts by applying AS9100 Rev D, https://advisera.com/9100academy/blog/2018/10/25/practical-guidance-on-preventing-counterfeit-parts-by-applying-as9100-rev-d/ and more on configuration management int eh article: Understanding configuration management in AS9100 Rev D, https://advisera.com/9100academy/blog/2017/05/08/understanding-configuration-management-in-as9100-rev-d/