Nut shoulder 25 contacts nut retaining {HEAD ~ ring} 75, housed within {TAIL ~ valve stem annular valley} 448, and axially moves stem 419 away from valve body 15 
housed within
Nut shoulder 25 contacts nut retaining { HEAD ~ ring } 75 , housed within { TAIL ~ valve stem annular valley } 448 , and axially moves stem 419 away from valve body 15
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH