Can anybody tell me what these are?

[herman]

And just in case there is any question, that is my photo but I have no problems at all with any of you using it. I was just joking with couv...funny thing I just put it out in the public on friday. The internet is a fast thing and you never know where your stuff will show up.
By the way, that nut is a SS Scubapro one fresh out of a really abused Mk-5

 

[Couv]

It looks like the one on the right in the second picture. The "barrel" which it is inside looks like the one in the first picture.

I take it that it's the wrong retaining screw?

There is a possibility that you don't have a MK 5. It could be a clone and all the parts are correct. A while back I was searching for a replacement for a couple of turret retainers and I scrounged parts from clones.....that's probably where those two bastard parts came from. After you post a few pictures, we can dig around to see if we can find a manual or diagram that fits what you have.

 

[BenjaminF]

Ok.
The yoke handle that came off of it has the ScubaPro label on it :S

I tried it earlier on today. It doesn't leak so long at the 1st stage is still and nothing moves. the moment i try to turn my head with the 2nd stage in my mouth, there is a flood of bubbles, so it may be that there is something else wrong here. I'll try to open it up later on today.

 

[BenjaminF]

Sorry I'm only getting back to this now.
While opening the stage, the screw holding the turret on snapped :S So I'm looking to see if I can get out the parts, but it's on a low flame. In the mean time I'm looking for a replacement...

 

[Couv]

Sorry I'm only getting back to this now.
While opening the stage, the screw holding the turret on snapped :S So I'm looking to see if I can get out the parts, but it's on a low flame. In the mean time I'm looking for a replacement...

You can get a stainless steel one here: Shop Online

 

[BenjaminF]

It's on the list which is waiting for payday...