Handle Assy, SS OBR SVCE (601R/S, 601RG/S,
          601F/S, 601R/S-2, 601RG/S-2, 601F/S-2)
    NOTE: FOR CARBON UNITS, SEE 4133691.
    NOTE: FOR PLATINUM UNITS, SEE 4133692.
          Use Starting w/Serial #2050010. From
          Serial #1885758 to #2050010, see
          4133510.  Prior to Serial #1885758, see
          4132410.