A further subsidiary object is to provide a bushing having {HEAD ~ external projections} for {TAIL ~ a pivot} pin 
for
A further subsidiary object is to provide a bushing having { HEAD ~ external projections } for { TAIL ~ a pivot } pin
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH