SECTION II TM 1-2840-252-23P GROUP 04 OXYGEN BOOSTER UNIT FIG. 37 15X GAS BARREL 1 81400 568032-2 .PACKING, PREFORMED, PART OF KIT ............... 1   P/N 51548-15 2 81400 16659 .BARREL, COOLING......................... ...................... 1 3 96906 MS24665-90 .PIN, COTTER, PART OF KIT P/N 51548-15........... 1 4 81400 51373 .NUT........................................................................ 1 5 PAHZZ 81400 16719-6 .BELLEVILLE SPRING................. ........................... 8 6 81400 51372 .BEARING. .............................................................. 1 7 81400 568216-17 .PACKING, PREFORMED, PART OF KIT  .............. 1   P/N 51548-15 8 81400 17566 .SEAL, PLANE, PART OF KIT P/N 51548-15........... 1 9 81400 17225-15 .RETAINER, PACKING, PART OF KIT.................... 1   P/N 51548-15 10 81400 16704-15 .SEAL, PLAIN, PART OF KIT P/N 51548-15............ 1 11 81400 16705-15 .SPACER, RING, PART OF KIT .............................. 1   P/N 51548-15 12 81400 51371 . PISTON ................................................................. 1 13 81400 568031-2 . PACKING, PREFORMED, PART OF KIT .............. 4   P/N 51548-15 14 81400 51367 .BARREL,GAS......................................................... 1 15 81400 568028-7 .PACKING, PREFORMED, PART OF KIT ............... 2   P/N 51548-15 16 81400 51366 .BUSHING ............................................................... 1 17 81400 51351-4 .RING, GLIDER, PART OF KIT P/N 51548-15 ......... 1 18 81400 568119-7 .PACKING, PREFORMED, PARTOFKIT ................. 1   P/N 51548-15 19 81400 51369 .SPACER................................................................. 1 20 81400 51370 .SEAL, PLAIN, PART OF KIT P/N 51548-15............ 1 21 81400 568213-7 .PACKING, PREFORMED, PART OF KIT ............... 1   P/N 51548-15 22 81400 51368 .BEARING ............................................................... 1 23 81400 51374 .RETAINER ............................................................. 1 24 81400 5008-113 .RING, RETAINING, PART OF KIT ......................... 1   P/N 51548-15 37-1 (1) ITEM NO. (2) SMR CODE (3) CAGE (4) PART NO. (5) DESCRIPTION AND USABLE ON CODES (UOC) (6) QTY