marking | outside diameter | inside diameter | thickness | keyway width x depth on face | keyway width x depth on reverse | |
---|---|---|---|---|---|---|
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DC 739 | 2.573 | 1.005 | .453 | .314 x .263 magneto |
.235 x .194 engine |
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DC7317 | 2.565 | 1.544 | .513 | .314 x .267 magneto |
.239 x .225 engine |
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B | 2.246 | .875 | .500 | .250 x .250 | 2 holes .312 dia. on circle 1.319 dia. |
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C | 1.750 | 1.000 | .865 | .250 x .267 | .250 x .253 |