Suunto QD oring sizes

[Diverspoint]

I am looking to replace the orings on my Suunto Cobra QD, but I can not find the sizes for these.

Most are standard sizes, but especially the oring inside the female connector is a problem. As the old oring is badly deformed I cannot measure it.

Anyone?

 

[Scubagaskets]

Hi there. Diverspoint.
Are you referring to the oring of the battery? I have identified some of the orings used in sunnto diving computers including cobra but is for the oring of the battery. Apart from that i have another 150 diferent o-rings for scuba diving.

Hope that will give you some help.

O-Rings for Diving Computers Archives - Premium O-rings Provider for Scuba Diving

Regards
Nicolas

QUOTE="Diverspoint, post: 8004876, member: 453879"]I am looking to replace the orings on my Suunto Cobra QD, but I can not find the sizes for these.

Most are standard sizes, but especially the oring inside the female connector is a problem. As the old oring is badly deformed I cannot measure it.

Anyone?[/QUOTE]

 

[Couv]

Are you referring to the oring of the battery?

Scuba Gaskets, Q.D. is an acronym for Quick Disconnect. So most probably it is for the female fitting that goes into that assembly.

 

[Scubagaskets]

Scuba Gaskets, Q.D. is an acronym for Quick Disconnect. So most probably it is for the female fitting that goes into that assembly.

Thanks for the info Couv. unless i have the o-ring dimensions i can't tell you for sure but most probably will be 012
here is the application guide i have made so far.Application Guide - Premium O-rings Provider for Scuba Diving

 

[Diverspoint]

Couv is correct, it is for the female part of the quick disconnect.

I have now found the correct size. It is 1.5MM CS (cross section) and 3.8MM ID (inner diameter) shore 90 NBR

Apparently this is a pretty special size, as I have by now found 2 companies that may have them. One is Maryland Metrics, that really do not respond to their own email forms. The other is Trelleborg, and I just sent a request for a quote to them.

 

[Couv]

Marco Mertic O-Ring Size Chart | Metric O-Rings Sizes
has 1.5 X 3.5 and 1.5 X 4.0 I would hazard a guess the 4.0 would work.

 

[Diverspoint]

I am now waiting to get an answer about these:

Electronic Catalog - Trelleborg Sealing Solutions

It is the correct size and hardness, now see if they will send a smaller amount.

 

[Couv]

Good deal, if that site comes up flat try PAI. The Usual Suspects have had good luck with finding difficult to source seals. Their site has a handy tool where you can enter the dimensions of the o-ring needed and they'll have a product code for it.
http://catalog.precisionassoc.com/a...ociates-inc-o-rings/special-size-o-rings-1083?

When you have it sorted, please update this thread Dive computer battery and o-ring spec's
with your findings and any other info you can input. Good luck.

 

[Diverspoint]

Hi Couv,

I looked on the PAI site, they do not have it in their list. At least not what I could find.

But I will keep looking

 

[Diverspoint]

Maryland metrics have it in the catalog, but not in real life. Trelleborg needs to make it om special order.

I am now beginning to doubt the measurements, as I do not think that Suunto has to order them only for this QD.

I did find out that the partnumber from Aqualung is K5168. On http://www.frogkick.dk/manuals/aqualung/ is the complete Aqualung parts list, and they have different partnumbers for the QD then Suunto.

I will keep looking