{HEAD ~ A spring} is disposed interior of the channel and between the assembled pivot stump and {TAIL ~ housing} 
is disposed between
{ HEAD ~ A spring } is disposed interior of the channel and between the assembled pivot stump and { TAIL ~ housing }
HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL