As best shown in FIG 5, the thrust plate 28 is advantageously molded as a separate piece 36 which fits within {HEAD ~ the distal end} 30 of the shaft 26 to form {TAIL ~ the plunger} 20 
As best shown in FIG 5 , the thrust plate 28 is advantageously molded as a separate piece 36 which fits within { HEAD ~ the distal end } 30 of the shaft 26 to form { TAIL ~ the plunger } 20
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH