This provides a safety feature in that valve stem 419 is not inadvertently removed from braze body 417 during {HEAD ~ the rotation} of {TAIL ~ nut} 23 
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This provides a safety feature in that valve stem 419 is not inadvertently removed from braze body 417 during { HEAD ~ the rotation } of { TAIL ~ nut } 23
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 REL TAIL TAIL TAIL TAIL TAIL OTH