Internal QD plunger o-ring

[moldmaker]

Good afternoon. I have a ball-lock Corny keg. What is this piece actually called, and what size is the o-ring? I have tried searching various terms and have come up empty. Thanks in advance.

 

[Broken Crow]

Looks more like the inside of a disconnect than the keg.. Is this what you're looking for?:
https://www.kegoutlet.com/ball-lock-pin-lock-disconnect-parts-list.html
https://www.ontariobeerkegs.com/cmb-balllock-gas-val-1-4mfl.html

 

[moldmaker]

Yes, I should have said that. It's part #3, inside the disconnect, but I don't need the whole part, just the o-ring.

 

[day_trippr]

The cross-section of that tiny "O-ring" - at least on CMB disconnects - is not round, it's tapered on one face.
I've never seen the oem rings sold separately - one has to purchase the plunger assembly - and I would not want to risk failure substituting a ring with a round cross-section just to save a buck...

Cheers!

 

[moldmaker]

I see. I wasn't aware of that. This is the only keg I've ever dealt with and I've put 5 batches of cider through and I suppose I've just gotten lucky so far! I'll look into replacing it with the proper part.