supply of spares for scrapper feeder in bah unit iii and iv 8 items , scrapper chain (29 links) for scrapper feeder in unit iv. (one set consist of 29 links) material: ni cr moly steel make : indian chains / hindustan parsons ltd / sunrix or equivalent , ‘u’ links (connectors) with 2 nos. ht nuts (m20), 2 nos. spring washer and 1 no. plate washer) for scrapper feeder in unit iv. material: c45 for ‘u’ link washer plate: ms make : indian chains / hindustan parsons ltd / sunrix or equivalent , self-locking plug with attachment for unit -iv material : en 24 , sprocket teeth for unit- iv material : en 36 , main drive wheel with keys for bah iii scrapper feeder. , modified submerged wheel assembly for unit iii scrapper feeders. (one set consist of 13 items) , l’ bracket with washer plate for scrapper feeders of bottom ash hopper unit- iii. , “u’’ link (connector) with 2 nos. ht nut (m16), ht lock nut (m16) 2nos, 2nos spring washers and 2 nos. plate washer for bah iii scrapper feeder. make : indian chains / hindustan parsons ltd / sunrix or equivalent