SM465 fill/drain plug threads?

[dyeager535]

I would have thought this would be easily found. But I can't find anything that references it.

I know they are NPT, but that's all. Anyone know off the top of their head?

 

[obijuank5]

I think its half inch but now you got me second guessing myself.

 

[Bent77]

1/2” npt

 

[dyeager535]

Thanks!