procurement of complete spares of m/s gd nash make air evacuation pump installed at turbine onsite area of 2x660 mw, sstpp,ph ii, dongalia , complete spares for nash tc11 vacuum pump , floating bearing end head part no. 102 , fixed bearing end head part no. 103 , floating bearing end cone part no. 104 , fixed bearing end cone part no. 105 , floating bearing outer cap ode part no. 115 , floating bearing inner cap part no. 116 , fixed bearing outer cap part no. 117 , fixed bearing inner cap nde part no. 118 , complete spares for nash at3006 vacuum pump , floating bearing end head part no. 102 , fixed bearing end head part no. 103 , floating bearing end cone part no. 104 , fixed bearing end cone part no. 105 , rotor shaft assembly (shrink fitted condition) part no. 110/111/111-1 , floating bearing outer cap ode part no. 115 , floating bearing inner cap part no. 116 , fixed bearing outer cap part no. 117 , fixed bearing inner cap nde part no. 118 , inter stage check valvepart no. 529 , second stage lobe part no.601 , second stage cone part no. 605 , second stage rotor shaft keypart no. 610-4