CD Stromberg O-Ring for Bushing Retaining Screw and Float Bowl Plug [019658]

CD Stromberg O-Ring for Bushing Retaining Screw and Float Bowl Plug in 125CD 150CD 175CD      P/N 019658

0.61” I.D. [15.5mm]
0.81” O.D. [20.6mm] 
0.010” thick [2.54mm]

This O-ring [20.6mm O.D.] is the large diameter one used to seal the bushing retaining screw on ealier series, 
OR the Float chamber sealing plug located at the base of the float bowl on 150CD and 175CD

The other O-rings used in these carburettors are 016268 [11.2mm O.D.] located on the Orifice adjusting screw, and 019657 located under jet orifice bushing