Cornelius (and similar) keg o-ring part numbers. These o-rings are available from McMaster-Carr. (Note: Prices are as of May 1, 2005 except as indicated. If anyone has updated pricing please forward to MtnBrewer or Brewer George.)Dip Tube O-Rings5/16" ID x 1/2"OD x 3/32" width9452K172 BunaN #109Pkg 100/$1.96 [as of July 2011]Post O-Rings7/16" ID x 5/8" OD x 3/32" width9452K23 BunaN #111Pkg 100/$2.21 [as of July 2011]Lid O-Rings3 1/2" ID x 4" OD x 1/4" width9452K218 BunaN #417Pkg 10/$12.50Part numbers for quad-rings (a.k.a., h-rings, double-seal rings) for the dip tube seals.Dip tube seals90025K368 - Double Seal Buna-N O-Ring As568A Dash #109$4.46/Pkg 100Post O-Rings (A70 durometer)90025K224 Dash #111$11.40/Pkg 100Post O-Rings (A50 durometer)2418T136 Dash #111$9.00/Pkg 100Q: What's the advantage of the quad-rings?A: They seal without excessive force. Tightening the posts too much can result in galling the threads.Part numbers for silicone o-rings for the posts.9396K24 - Silicone O-Ring As568A Dash#111Part numbers for dip tube gaskets. (Used instead of the o-rings.)4061T116 $10.48 per Pack of 100 (as of June 2009)AS568A Dash Number 011Type O-RingO-Ring Type StandardCross Section Shape SquareWidth 1/16"Actual Width .070"Inside Diameter 5/16"Actual Inside Diameter .301"Outside Diameter 7/16"Actual Outside Diameter .441"Material Buna-NBuna-N Type StandardDurometer HardDurometer Shore Shore A: 70Temperature Range -20° to +225°FColor BlackPart numbers for quick disconnect gaskets.4061T118 AS568A Dash Number 013$10.68 per Pack of 100 (as of June 2009)Type O-RingO-Ring Type StandardCross Section Shape SquareWidth 1/16"Actual Width .070"Inside Diameter 7/16"Actual Inside Diameter .426"Outside Diameter 9/16"Actual Outside Diameter .566"Material Buna-NBuna-N Type StandardDurometer HardDurometer Shore Shore A: 70Temperature Range -20° to +225°FColor Black These gaskets fit the following types of quick disconnects: Thanks chriscose for updated pricing.
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