At the front end of {HEAD ~ the conductor terminal part} is {TAIL ~ the sleeve shaped contact spring part} 13 
At the front end of { HEAD ~ the conductor terminal part } is { TAIL ~ the sleeve shaped contact spring part } 13
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH