Inevitably, they have sent me the wrong component. Well, kinda. They have sent me the component that corresponds with the part number that I used when ordering. However, the part number on the key to the exploded parts diagram is incorrect. I have emailed them and said that I consider them to be at fault and have requested that they send the correct item FOC. We’ll see what happens.
(Aside: I’ve always loved the notion of exploded diagrams. KABLOOIEEE!)