{HEAD ~ The notch} is located between the first end and {TAIL ~ the annular flange} and houses a stem retaining ring 
is located between
{ HEAD ~ The notch } is located between the first end and { TAIL ~ the annular flange } and houses a stem retaining ring
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH