Where do you all buy your o-rings?

[happy-diver]

If you have Apeks regs

Ha ha ha yeah man I do I do I do I do I do!

Apeks ID	BS	Cross Sectn.	Inner diam.	SCUBA Application Seal
-	003	1/16	1/16	High-Pressure Hose/SPG swivel
AP6403	004	1/16	5/64	High-Pressure Hose/SPG swivel (less common)
AP1299	006	1/16	1/8	Apeks HP seat (1st stage)
AP1154	010	1/16	1/4	Low-Pressure Hose/2nd Stage Regulator Cylinder Valve Stem Apeks crown (2nd stage)
AP1409	011	1/16	5/16	Standard Low-Pressure Port/Hose (3/8 UNF) Apeks adjusting screw (2nd stage) Apeks conical filter (1st Stage) Apeks FSR HP crown (1st stage) Power Inflator quick disconnect oring
AP1445	012	1/16	3/8	High-Pressure Port/Hose (7/16 UNF) Manifold and Manifold Port Plugs
AP1410	013	1/16	7/16	Large Low-Pressure Port/Hose (1/2 UNF) Apeks balance plug inner (1st stage)
AP1159	014	1/16	1/2	Standard Yoke Regulator/K-valve Apeks ATX adjuster screw (2nd stage)
AP1267	015	1/16	9/16	Apeks value spindle (2nd stage) Cylinder Valve Bonnet Nut
AP1438	019	1/16	13/16	Apeks Venturi (2nd stage) Apeks turret bolt (1st stage)
AP1420	024	1/16	1-1/8	Apeks Turret (1st stage)
AP1166	111	3/32	7/16	Apeks DIN Regulator/Valve Apeks Yoke spare (2nd stage) Note: Yoke valves often use BS112 or BS014
-	214	1/8	1	Cylinder with Large Neck/Valve (3/4 NPS - All Aluminum, most Steel cylinders)
AP2041	2x1 (606)	1mm	2mm	Apeks shuttle valve (2nd stage)
AP5711	2.5x1 (607)	1mm	2.5mm	Apeks ATX adjuster screw nib (2nd stage)
AP1300	15x1.5	1.5mm	15mm	Apeks HP balance plug outer (1st stage)
-	006	2.9mm	1.78mm	Power Inflator spindle (Polyurethane)
-	012	1/16	3/8	Power Inflator cylinder inner oring (Buna)
-	112	3/32	1/2	Power Inflator cylinder outer oring (Buna)
-	204	1/8	3/8	Power Inflator oral inflate oring (Buna)

And Scubapro too!

https://www.scubadoctor.com.au/downloads/regulator-manuals/Scubapro-o-rings-chart-1.pdf

I saw them live!

 

[boat sju]

Slight hijack here. I got this reg in an estate type sale years ago but never new exactly what model it is. DST ?

 

[NYCrecdiver]

Slight hijack here. I got this reg in an estate type sale years ago but never new exactly what model it is. DST ?
View attachment 817001

'slight'? Quite the understatement.

 

[boat sju]

'slight'? Quite the understatement.

Well . . . There was quite a bit of Apeks o-ring discussion by guys I respect.

 

[Tanks A Lot]

Slight hijack here. I got this reg in an estate type sale years ago but never new exactly what model it is. DST ?
View attachment 817001

Not the best picture to identify it, but I reckon it's an Apeks DS4 somewhere around the year 2005.

 

[boat sju]

@Tanks A Lot , yeah I know the picture wasn't great but the reg is so basic looking I didn't know if there was some identifying characteristic I should get in the pic or not.

I know which o-rings I'll need if I want to service it now though.

 

[rsingler]

I believe you slipped a line somewhere if I'm not totally off now. The BS0351-16 with it's 35.1mm strikes me as way too big.

You're quite right! My transcription error.
BS4518 151-16 (1.60x15.10) is what I believe the oring to be. I corrected my post above. Thanks for cross-checking!
This is the spreadsheet I started preparing after measuring a few kits:

 

[NYCrecdiver]

Anybody has o-ring specs for Big Blue lights?

 

[Tanks A Lot]

Well, it only took three of us to get it wrong to finally get to the right answer! My BS0161-16 (1.6mm x 16.1mm) is off by a whole mm. Your BS4518 151-16 (1.60x15.10) is likely the correct size.

That is a pretty spreadsheet you made.

I can confirm that:

• AP1409 is equal to a BS011
• AP1445 is equal to a BS012
• AP1299 is equal to a BS006
• AP1298 is equal to a BS017
• AP1166 is equal to a BS111

These sizes come right from Apeks and so are correct.

 

[mr_v]

Do you know the duro for AP1166? I use viton duro 90 caz what's what I got in the kit.. and have to replace them quite often as they simply deform and lose the round cross section.