a second orifice positioned on said housing cap engaging said second step for preventing {TAIL ~ movement} of said housing cap relative to the housing during removal of said plug cap from {HEAD ~ the plug} 
a second orifice positioned on said housing cap engaging said second step for preventing { TAIL ~ movement } of said housing cap relative to the housing during removal of said plug cap from { HEAD ~ the plug }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD