Valve stem 419 would have to be rotated in {HEAD ~ the opposite direction} in order to engage with {TAIL ~ braze body} internal threads 443 
Valve stem 419 would have to be rotated in { HEAD ~ the opposite direction } in order to engage with { TAIL ~ braze body } internal threads 443
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH