procurement of spares for various pumps, installed in ash water pump house of ash handling plant at 2x600mw, unit 1 and 2, sstpp, mppgcl, dongalia , high pressure water pumps ( model no. 200 / 250 est, sr. no. 81226501 / 10 / 1 ) , neck ring part no. 1181 , impeller part no. 1500 , low pressure water pumps ( model no. 250 / 250 ast, sr. no.81226501 / 30 / 1 ) , neck ring part no. 1181 , impeller part no. 1500 , model - 12 / 14 ale-mk1 pump pump serial no. 81226501 / 90 / 1 flushing water pump , impeller part no. 1500 , neck ring part no. 1181 , pump shaft part no. 1800 , cowl nut ( lh ) part no. 3001 , cowl nut ( rh ) part no. 3002 , sleeve nut ( lh ) part no. 3031 , sleeve nut ( rh ) part no. 3032 , impeller key part no. 3200 , coupling part no. rb-179-6 , model -8 / 10 cme-ta pump pump serial no. 81226501 / 50 fly ash water pump , impeller part no. 1500 , neck ring part no. 1181 , cowl nut ( lh ) part no. 3001 , cowl nut ( rh ) part no. 3002 , sleeve nut ( lh ) part no. 3031 , sleeve nut ( rh ) part no. 3032 , shaft sleeve part no. 2100 , coupling part no. rb-228 , sleeve o ring part no. 4250 , coupling key part no. 3250 , locking washer part no. 3020 , lock nut part no. 3010 , casing top & bottom half part no. 1001 / 1002 , stuffing box bush part no. 2402 , shaft with key part no. 1800+3200 , model no. rn65-9 chr pump seal water pump , impeller , shaft