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