Oring Seal 7170238 ( no GE cross reference PN available ) for Rotor disc shaft ( this is the top and smaller of the two shaft o-rings ) used in the Valve Seal Kit ( Seal Kit Sears, GE, North Star standard 7129716 or PN WS35X10005 ).
Reference # 29 in our diagram, and for use with the "standard" or what is called the "3/4" Valve.
NOTE: It is recommended to replace all the internal Seal o-rings and gaskets at the same time, and not just this one o-ring
Seal Kit = 7129716
Also used as o-ring on Clack "Basket" D1242