corrigendum - procurement of critical spares of premium make gear boxes and premium make fluid coupling installed at ash handling plant of 2x600 mw units sstpp , dongalia khandwa , gear box for clinker grinder ( inline helical gear box ) , model: sp 218 / 6 . 7 , transmission shaft , pinion , wheel , third gear , output shaft , gear box for ash slurry pump ( helical gear box ) , model: h1-225 / 2 . 03 , output shaft , input pinion shaft , wheel , casing ( body ) , input oil seal , output oil seal , fan , gear box for bottom ash overflow pump ( helical gear box ) , model: h1-140 / 2 . 03 , output shaft , input pinion shaft , wheel , casing ( body ) , input oil seal , output oil seal , fan , fluid coupling for clinker grinder ( hollow traction fluid coupling ) , model: 370 htc , sr . no . fc 50825 , impeller , runner , shaft , bearing liner , circlip external , flexible coupling , hex head bolt , nut nylock , runner bolt hex head , allen head head , plain washer , hex head screw , nut clevilock runner / shaft , bonded seal , filling plug , joint ( brg hsg / csg ) , joint ( csg ) , star washer csg / brg hsg , hex head screw , spring washer . , adaptor plate , fusible plug / filling plug , seal housing imp . side , hex head screw , cover plate , c sunk screw , dowel ( casing ) , rubber bush ( one set ) , star washer , insert imp / cham . , insert ( imp seal hsg holes ) , insert filling plug , insert casing brg hsg , washer fusible plug , extraction bolt , fluid coupling for ash slurry pump ( variable speed fluid coupling ) model: 500 pst , sr . no . 50818 , con . no . 10085190 , input shaft , impeller , imp . bearing sleeve , rectangular key , cylindrical pin intl threaded , cylindrical pin internal threaded , socket head bolt , socket head bolt , socket head bolt , plain washer , nylock nut , multi disc unit , star washer , output half coupling , star washer , circlip external , output shaft , runner , baffle-runner ( 1 . 1 ) , hex head bolt - run / shaft , circlip external - back casing , circlip external - o / p brg , clevilock nut-run / shaft , plain washer , fusible plug , suction strainer , cyl . pin int . threaded , hex head bolt , plain washer , circlip internal-i / p hsg , end cover- output side , hex head bolt-end cover ] , bonded seal , scoop tube comp , guide tube complete , scoop discharge bend , scoop discharge collector , rod end bearing - female , rod end bearing-male , hex head bolt , nylock nut , plain washer , hex head bolt , hex head bolt , star washer , star washer , joint-box / cover , hex head bolt , plain washer , oil level window , joint- inspection cover , y-bearing plummer block unit , hex head bolt , drain plug , hex head bolt , scoop operating lever , bearing abutment ring , joint i / p housing , bonded seal , joint scp hsg / mtg plate , plug , bonded seal , joint end cover , joint i / p hsg / plate , y-bearing flanged unit , felt seal , fluid coupling for bottom ash overflow pump ( variable speed fluid coupling ) model: 370 pst , sr . no . 50820 , con . no . 10086545 , imp . bearing sleeve , driven gear , rectangular key , cylindrical pin intl threaded , cylindrical pin internal threaded , socket head bolt , socket head bolt , socket head bolt , plain washer , nylock nut , multi disc unit , star washer , output half coupling , star washer , circlip external , baffle-runner ( 1 . 1 ) , hex head bolt - run / shaft , circlip external - back casing , circlip external - o / p brg , clevilock nut-run / shaft , plain washer , fusible plug , suction strainer , cyl . pin int . threaded , hex head bolt , plain washer , circlip internal-i / p hsg , end cover- output side , hex head bolt-end cover ] , bonded seal , rod end bearing - female , rod end bearing-male , hex head bolt , nylock nut , plain washer , hex head bolt , hex head bolt , star washer , star washer , drive gear , joint-box / cover , hex head bolt , plain washer , oil level window , joint- inspection cover , y-bearing plummer block unit , hex head bolt , drain plug , hex head bolt , scoop operating lever , bearing abutment ring , joint i / p housing , bonded seal , joint scp hsg / mtg plate , plug , bonded seal , joint end cover , joint i / p hsg / plate , y-bearing flanged unit , felt seal , compression plate