The service valve 5 wherein said {HEAD ~ nut retaining component} is {TAIL ~ a nut retaining shoulder} that is formed integrally with the second valve stem 
is
The service valve 5 wherein said { HEAD ~ nut retaining component } is { TAIL ~ a nut retaining shoulder } that is formed integrally with the second valve stem
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH