Orifice Holder-9.2K, Nat, SVCE (SRT,DF,CT,GR)
   SRT    Use Regardless of Serial Number.
 DF366/CT Use Starting With Serial #17000000 And
          Between Serial #16050607 To #16050686.
          Prior to Serial #17000000 Except Between
          Serial #16050607 To #16050686 See 817166
  DF36650 Use Regardless of Serial Number