Scubapro Parts I.D Help

[Bryan@Vintage Double Hose]

But gentleman that he is, he offered me $12,500 for the detective work.
Hard as it will be, how could I turn him down?

I sell SCUBA gear.....Like I've ever had $12,500 all at once. Now if we can do $12.50 I'm in!

 

[Couv]

Part 5 diaphragm has P/N 11-250-1xx on it. Couv was thinking it would fit several regulators.

I've seen diaphragm P/N 11-250-1xx in a couple of R190 second stages and in a Balanced Adjustable Asia Pacific model. The -"250"- indicated in the p/n caused me to search through old G250 parts diagrams and sure enough it was in a few of those models too. At any rate, it should fit R190/108/109/Balanced Adjustables/G250 and if it's damaged can be replaced with a diaphragm from any of those models. Don't attempt to remove the disc in the middle to clean it like the manual says......most likely you'll damage the diaphragm. (guess how I know)

 

[Couv]

...
Part 4 has a number on the bag 10-600-123 if that helps.........

I just ran across one of these. It's a high pressure seat for a MK15

 

[rsingler]

I just ran across one of these. It's a high pressure seat for a MK15

View attachment 482638

Ah! That makes sense! There was a whole pile of other Mk15 stuff that I was able to identify, so it's now coming together.
Bryan, I haven't given up on finishing the ID of the Dacor stuff. And if I still have those seats above, I'll now tag them as Mk15, thanks to @couv !

 

[Couv]

The MK15 saw two iterations of hp seats and seat retainers. One seat, has a groove for an o-ring like the MK10 Plus/MK20/25 but sadly, not interchangeable with those newer models. The other seat shown in the picture has a concave dimple like the newer version of the MK5/6/7/9/10 but again, not interchangeable with those models. The dimple seat also requires an o-ring on it's face rather than around it's body. There are other parts required for each seat configuration. The seat retainers are interchangeable-one was an "upgrade" to the other. I think the original version of carrier had an allen key indentation for removal/installation where the newer version has the SP two pin "scratch me if you can" retainer.

 

[rsingler]

Yes, Service Bulletins 234, 234A and 234B outline the changes and provide pics and new part numbers. Thanks for the reminder about what's not interchangeable, @couv !

Those seats are the new ones.

 

[rsingler]

 

[rhwestfall]

"scratch me if you can" retainer

LMAO! How true!