As per clause in T&C letter issued, it has always been a very clear practice to Navy that for superseded p/n, new p/n will be indicated followed by old p/n in brackets ( ).
The blue highlighted p/n are not supersession. The p/n given by RTN belongs to military p/n as we require “end user certificate” to be provided for quotation/purchase, hence recommendation to p/n for 396 engines. (you can refer to attached email)
Nevertheless, we will issue letter as requested.
I will send you a copy once we get the signature approval. Draft attached for your reference.
There have been too many letters being issued even for straight forward supersession p/n . Moving forward hope we can work on this to reduce paperwork.