Agilent 8714ET 50 ohm N center pin split apart?

[wd5jfr]

I'd like to see if I can find a type N female bulkhead connector for my 8714 Port 2 directional bridge coupler but.... I don't want to take out all the screws to see what it looks so I can find a replacement since I can still use it.  I'm assuming that the type N bulkhead connector is inserted in the directional bridge coupler.  Does anyone have a picture that I can use to identify one or where to look?  About 20 years ago I recall my Eagle RLB came with a tool so that you could replace just the center pin.   I never had a broken one before and I don't know why it broke so I'm looking for advice. Thanks
Hank
PS I just got this from  HP groups https://www.keysight.com/us/en/ecom/parts/part-detail.html/08711-60038, Keysight price $1054.00 with over 20 different sets using this part. I'm not sure what the part is but at the price I assume it's the directional bridge coupler with type N female.

[wd5jfr]

I think I just found some on Groups. Here's what they look like in a screenshot from a Youtube 8711C video by IMSAI Guy.