{TAIL ~ The contoured body cross section} is commensurate with the contoured wall cross section for inserting and keying {HEAD ~ the housing} into the receptacle 
{ TAIL ~ The contoured body cross section } is commensurate with the contoured wall cross section for inserting and keying { HEAD ~ the housing } into the receptacle
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH