procurement of spares for sam turbo make ash slurry pump (model no. ar150 /510) installed in ash pump house of unit no. 10 and 11 of stps-iv, sarni. , spares for “ sam turbo” make ash slurry pump (model no. ar150/510) installedin ash pump house of unit no. 10 & 11 ofstps-iv, sarni. , labyrinth(pump end) part no.14p , labyrinth(drive end) part no.14d , impeller with impeller nutpart no.18,38,50,58 , shaft with keypart no.4,31,32 , lantern restrictor part no.13 , wear plate (b.side) with insert part no.16,161 , wear plate (s.side) with insert part no.19,191 , split gland part no.10 , grease retainer part no.7 , stud (base/,brt. side cover)hex nut, washer part no.45,46,46a , piston ringpart no.51 , expellerpart no.14 , expeller housingpart no.9 , volute casing part no.17 , shaft sleeve part no.12 , bearing housing part no.3 , grease nipple part no.26 , lock nutpart no.47 , motor pulleypart no.386-166-sc6 , pump pulley part no.599-166-sc6 , suction cover part no.21 , bracket side cover , dome nut