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Posted by Chriscase [76.221.177.218] on Monday, November 30, 2009 at 15:05:04 :
In Reply to: Specs on gas sending unit o-ring? posted by Chriscase [76.212.163.101] on Sunday, November 29, 2009 at 12:09:57 :
-226, 2" id, .139 body. the - is part of the designator. Buna is the material.
Here's a cool site, scroll to the chemical, click it to bring up a list of 0-ring materials ratings. 0-4, Buna is a 4 for both gasoline and ethanol. 4= best.
http://www.efunda.com/designstandards/oring/oring_chemical.cfm