TM 55-1905-223-24-18-2
b. Install retainer ring (12).
c. Install valve disk (13).
d. Install flat washer (11), plain cap nut (10) and cotter pin (9).
e. Install disk hanger (2).
f. Install headed straight pin (3).
g. Install vent plug-(8).
h. Install gasket (6).
i. Install access cover (7).
j. Install plain hexagon nut (5).
k. Replace swing check valve, paragraph 2-311 .
3-668