TO Number: TM 55-1520-236-23P-1 - AH-1 - AVIATION UNIT AND INTERMEDIATE REPAIR PARTS AND SPECIAL TOOLS LIST FOR HELICOPTER ATTACK for Part Numbers: AH1-P, AH-1E, AH-1F
TO Number: 15X4-3-1-114 - LIQUID OXYGEN QUANTITY INDICATOR SET - ILLUSTRATED PARTS BREAKDOWN (IPB) for Part Numbers: 264-2, 264-3, 9A-220, 9A-221, 9A-1005, 9A-1010, 964-1, 964-2
