You get it in Circular packaging.Packaged in a Bulk case.Besides that, there's also STANDARD:MIL-C-5015, POLARIZATION AVAILABLE, to name a few.Using it at a temperature below 125°C is ideal.A minimum temperature of -55°C is needed for this device.There's a Cable mount on the part.
MS3101A20-4S Features
MS3101A20-4S Applications
There are a lot of Amphenol Industrial Operations MS3101A20-4S Circular Connectors applications.