This provides {HEAD ~ a safety feature} in that valve stem 419 is not inadvertently removed from {TAIL ~ braze body} 417 during the rotation of nut 23 
This provides { HEAD ~ a safety feature } in that valve stem 419 is not inadvertently removed from { TAIL ~ braze body } 417 during the rotation of nut 23
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH