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Are 5/16 o ring fittings available?

orville on Sat August 02, 2008 6:36 PM User is offline

Title says it. I need them to connect to an accumulator.

Orville

TRB on Sat August 02, 2008 7:06 PM User is offlineView users profile

5/16th are #8 fittings.

Fitting Page

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orville on Sat August 02, 2008 7:15 PM User is offline

Am I confused? I thought #8 was 1/2".

Orville

TRB on Sat August 02, 2008 7:36 PM User is offlineView users profile

Excusse me 5/16th is #6.

This may help, Hose Chart.

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orville on Sat August 02, 2008 8:01 PM User is offline

I was confused. Does 5/16 I. d. (#6) on the hose chart equal 5/16 o. d. on the aluminum line?

Orville

retrofit on Sun August 03, 2008 12:31 PM User is offline

Yes, the barrier hose is sized by inside diameter while metal tubing is sized by outside diameter so a #6 tube fits inside a #6 hose.

GM Standard o-rings are made from 1/16" material and are sized center to center. So, a #6 o-ring (3/8") is actually 5/16" inside diameter.

GM captured o-rings are made from larger diameter material and the inside diameter is smaller than standard to fit the tubing indentation. The outside diameter is the same.

If you would list the make and model of the vehicle and specific location of the o-ring it would help cause most are identified only by application, not size.

orville on Sun August 03, 2008 5:29 PM User is offline

^
OK, that helped my my confusion quite a bit. What I'm working on is a frankenstein application. I transplanted the engine and dash
from a 06 Grand Prix into a 88 fiero. Because of room constraints, I had to use an after market condenser that didn't have the attached
stock drier and therefore I'm trying to use an accumulator/drier from a 05 Pontiac GTO which has what looks like 5/16 male o-ring fittings -
at least what their i. d. measures.

Here's a pic:

chris142 on Sun August 03, 2008 6:55 PM User is offline

That looks like a universal dryer. Should use a #6 O-ring.

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