Part and counterpart
Identify both actual references and revisions; appearance is not a mating check.
INTERFACE / DRAWING / SAMPLE
Prepare the sample questions.
A local checklist for part, counterpart, mounting and actual evidence. No interface or safe engineering design is approved.
Mechanical scope
Request the manufacturer drawing, dimensions and tolerances.
Mounting and termination
Identify board or panel interface, installation references and actual process documents.
Sample and evidence
Define what a sample can answer, and what still needs document and engineering review.