supply of - 1 impeller , 2 pump shaft , 3 shaft sleeve , 4 casing wear ring , 5 gland , 6 impeller key , 7 stuffing box bush , 8 bearing housing-de , 9 bearing housing-nde , 10 main bearing cap , 11 water thrower , 12 shaft nut , 13 lantern ring , 14 distance piece , 15 o-ring for water thrower , 16 impeller , 17 casing cover , 18 bearing housing , 19 lantern , 20 deflector , 21 bearing cover-nde , 22 bearing cover-de , 23 wear ring, casing , 24 wear ring, casing cover , 25 impeller nut , 26