Conshelf SE3 service kit Question w/images

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820080 AS568 2-006 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC

119129 Dished backup ring - TheOringStore, LLC N8-90-006,
though lots of folks just use a 2-006 split PTFE washer (McMaster Carr 9560KL32 or TheOringStore ST006)

820120 AS568 2-112 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC

820094 AS568 2-111 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC
2-111 will fit, though kit o-ring is 2.64x12.30, which is closer to an ISO3601 B0100
(I may have entered the wrong OD there - have to recheck...)

820011 AS568 2-011 Duro 70 o-ring - McMaster Carr or TheOringStore, LLC

957004 AS568 2-012 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC

105106 Filter Trident AA71 - CoralSeaScuba.com

105940 HP Seat Trident A244 - CoralSeaScuba.com (may look black like your tarnished one)
or Scubagaskets 124624 (blue seat like from recent kit)

845095 Filter Washer - McMaster Carr 316 SS washer 91182A160

820038 For late models with removable volcano
AS568 2-011 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC, though
actual kit part measures 1.86x7.24 which corresponds EDIT: more closely to a Parker 5-series 5-584

103429 Diaphragm 35mm x 2.4mm (old), or 35mm x 1.5mm (new)
New diaphragms Trident A163 - CoralSeaScuba.com
or Scubagaskets 119159

863051 Internal Circlip (Filter Retaining Ring) McMaster Carr 15-7PH Stainless 91580A151

861068 External Circlip (Yoke Retaining Ring) McMaster Carr 15-7PH Stainless 91590A127

There is no non-Aqualung source I am aware of for the thrust washer 821026 though I have a few NOS parts left. If folks need more thrust washers, I can try to order. I've contacted Scubagaskets to see if they can get it made.
 
Thank you for the reference on the parts and sources for them.

I had to teach myself about o-rings after reading your post.

so AS568 is a standard (Aero Space 568) and Duro Number is a hardness scale...measured with a durometer.

But let me ask you....there is some part of your post that I don't understand.

For example....Take the first o-ring you mention:

Aqualung part Number 820080
Description: HP Block O-ring

your reference says: AS568 2-006 Duro 90 o-ring

AS568 (as568 standard)
006 (size)
Duro 90 (Duro Hardness: 90)

What is the 2?

The 2- before the 006?

PS. this is the only one on your list with a tiny typo....your aqualung part number says 800080...according to my kit it should be 820080
 
800080 AS568 2-006 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC

119129 Dished backup ring - TheOringStore, LLC N8-90-006,
though lots of folks just use a 2-006 split PTFE washer (McMaster Carr 9560KL32 or TheOringStore ST006)

820120 AS568 2-112 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC

820094 AS568 2-111 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC
2-111 will fit, though kit o-ring is 2.64x12.30, which is closer to an ISO3601 B0100

820011 AS568 2-011 Duro 70 o-ring - McMaster Carr or TheOringStore, LLC

957004 AS568 2-012 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC

105106 Filter Trident AA71 - CoralSeaScuba.com

105940 HP Seat Trident A244 - CoralSeaScuba.com (may look black like your tarnished one)
or Scubagaskets 124624 (blue seat like from recent kit)

845095 Filter Washer - McMaster Carr 316 SS washer 91182A160

820038 For late models with removable volcano
AS568 2-011 Duro 90 o-ring - McMaster Carr or TheOringStore, LLC, though
actual kit part measures 1.86x7.24 which corresponds EDIT: more closely to a Parker 5-series 5-584

103429 Diaphragm 35mm x 2.4mm (old), or 35mm x 1.5mm (new)
New diaphragms Trident A163 - CoralSeaScuba.com
or Scubagaskets 119159

863051 Internal Circlip (Filter Retaining Ring) McMaster Carr 15-7PH Stainless 91580A151

861068 External Circlip (Yoke Retaining Ring) McMaster Carr 15-7PH Stainless 91590A127

There is no non-Aqualung source I am aware of for the thrust washer 821026 though I have a few NOS parts left. If folks need more thrust washers, I can try to order. I've contacted Scubagaskets to see if they can get it made.
Question about your post referenced above
 
Thanks for finding my mistake! I've corrected the original post.

Re: your question about the "2-" prefix...
I'm no historian, so others should chime in here, but as far as I know, the prefix refers to the original Parker Hannifin series for the o-ring sizes. Here's a screenshot from their book:
1677608802821.png

For scuba purposes, they had the 2-series, and the 500 series, commonly abbreviated 5-xxx.
But yes, folks commonly refer just to an '011' port plug o-ring rather than a 2-011. They mean the same.
 
https://www.shearwater.com/products/teric/

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