Part Number: 100N4000-2 (Oxygen cylinder ay)Part Number: 176176-64EX (Oxygen cylinder ay)Part Number: 5500L6W-BEF23A (Oxygen cylinder ay)Part Number: 6350A28GC (Oxygen cylinder ay)Part Number: 895-02050EX (Oxygen cylinder ay)Part Number: 895-20077EX (Oxygen cylinder ay)Part Number: 9914067-30 (Oxygen cylinder ay)