The packaging contains Circular.This product is packaged in a case marked Bulk.Further, there are features such as STANDARD: MIL-C-26482, COMPATIBLE CONTACT: M39029/31-240, to name only a few.There is a Jam Nut mount on the part.
MS3124E14-18PW Features
MS3124E14-18PW Applications
There are a lot of Amphenol Industrial Operations MS3124E14-18PW Circular Connectors applications.