TM 5-4220-231-14&P (6) Reassemble parts removed from regulator in   a.   stop    4   and    assemble in   order hex    nut    (7),   sleeve (6), 2 bushing (5),    handle (4),    three hex 5 head screws (3),   center spacer (2), 7 3 and    hex    head    screw (1)  on   regulator housing (8). Make   certain     housing is 6 properly positioned before tightening hex    nut   (7)  and    securing regulator     to panel. 8 (7) Lubricate     now  O-ring    (15),   M83248/2- 111,   with   silicone     compound (Item   9, Appendix D) and place on 9 positionable elbow. Position and 15 8 tighten tube (10) to positionable elbow    (9)  by  tightening union    nut  (11) clockwise. Tighten nut    on     elbow, making a     tight     connection to     the regulator housing (8). 10 (8) Lubricate new  O-ring    (21),   M8324812- 210,   with   silicone    compound (Item    9, 20 Appendix D)   and     place in   end     of tailpiece (20). Position and    tighten tailpiece (20)   to   globe    valve     (22)   by tightening union    nut   (14)   clockwise. 14 21 22 (9) Apply    pressure to    CRS. Leak-test with   nonionle     detergent solution (NID) GP    (Item   17,   Appendix D).     Correct leaks     as    necessary. (10)    Complete Reentry Control Report and     Log. 20 1@4 4-86