purchase of premium transmission spares of gear box model no. h1-180 installed in ash slurry series and model no. h2-125 and fluid coupling fcu 16.25 and its spares installed in clinker grinder of ahp of unit no.10 and 11, stps,sarni. , fluid coupling fcu 16.25 and its spares , pembrill make fluid coupling model fcu 16.25 , fusible plug for fcu 16.25 , gland diaphragm & gland nut, part no 8 & 9 , driving bolts , part no 17 , resilience driving plate ,part no 18 , driving boss ,part no 19 , runner half-coupling ,part no 23 , multidisc coupling bolts , part no 24 , multidisc unit ,part no 25 , output half-coupling , part no 26 , spare for premium transmission make gear box (model h1-180, sr. no. hgf-33158 ) , input pinion shaft with keys & sleeve , output shaft keys & sleeve , input oil seal , wheel , fan , casing with all cover , spare for premium transmission make gear box model h2-125) installed in bottom ash hopper , first stage pinion with keys & sleeve , casing with all cover , first stage wheel with keys & sleeve , seal stage pinion , seal stage wheel , output shaft , oil seal