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