55P1-1508 Burton Compatible 55 serie Pressure Balanced Oil Filled (PBOF) 15 shell, 8 pin The 5500 plugs are also available in PBOF form factor. The plug is a modified 55A1 attachable designed to accommodate a special backshell which has a hose barb and oil fill port. The part number becomes 55P1-XXXX-0000.
