As best shown in FIG 5, the thrust plate 28 is advantageously molded as a separate piece 36 which fits within the distal end 30 of {HEAD ~ 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 the distal end 30 of { HEAD ~ 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 OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH