{TAIL ~ The valley} is located between {HEAD ~ the annular flange} and the second end and houses a nut retaining ring 
{ TAIL ~ The valley } is located between { HEAD ~ the annular flange } and the second end and houses a nut retaining ring
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH