Its likely on mouser and or Digikey.
That's where I'd look.
Pins look similar to that of mil spec amphenol, even though the connector isn't. I've never used PLT in the facilities I've worked at, but can't say those aren't common. Look like a decent option for power connections though, depending on price, I'll have to keep them in mind. Hopefully the male pin connector you're holding isn't tied to a power source.
The girl side is the source side, the boy side goes to the load.
it wouldn’t hurt my feelings if I could find something similar, but non-compatible that way there was no possibility of the new load getting swapped with the existing load in the future.