Cavity Collar,Ovn,30,Cont,SVCE (SO30CM,DO30CM,
          SO30PM,SO30TM.DO30PM,DO30TM)
  SO30CM  Use Regardless Of Serial Number
  DO30CM  Use Regardless Of Serial Number
  SO30PM  Use Starting With Serial #16253613
          Prior to #16253613 See 823353
  SO30TM  Use Starting With Serial #16258614
          Prior to #16258614 See 823353
  DO30PM  Use Starting With Serial #16258614
          Prior to #16258614 See 823353
  DO30TM  Use Starting With Serial #16258614
          Prior to #16258614 See 823353