procurement of im-2 is-15500 hp accessories and tools to provide handpump spare part , 32 mm. dia. g.i.pipe b class each 3 mtr. long both side threaded and socket at one end as per ( is:15500 part - ii ) , 12 mm dia.connecting rod each 3 mtr length having one coupling welded & check nut on other sideas per ( is:15500 part - iv ) , roller chain with coupling as per ( is:15500 part - iv ) , water tank assy. for im-ii ( is:15500 part - iv ) , head ( is:15500 part - iv ) , handle bar ( is:15500 part - iv ) , handle axle pin with nut stainless steel . ( is:15500 part - iv ) , ball bearing 6204 zskf ( is:15500 part - ii ) , upper valve withrubber seat ( is:15500 part - vi ) , lower valve with guide & rubber seating ( is:15500 part - vi ) , hexagonal rod coupling ( is:15500 part - iv ) , cylinder body with brass linear ( is:15500 part -v ) , reducer cap for cylinder ( is:15500 part - v ) , nitrile pump bucket washer ( is:15500 part - vii ) , rubber sealing ring ( is:15500 part - vii ) , third plate ( is:15500 part - iv ) , upper valve assembly complete ( is:15500 part - ii ) , lower valve assembly complete ( is:15500 part - ii ) , socket for riser pipe ( is:15500 part - iv ) , inspection cover / front cover ( is:15500 part - iv ) , hex bolt m12*20 & hex nut as per is 1363 / 1984 , hex bolt m12*40 & hex nut as per is 1363 / 1984 , rubber seating ( upper valve ) ( is:15500 part - vii ) , rubber seating ( lower valve ) ( is:15500 part - vii ) , plunger rod ( is:15500 part - iv ) , plunger yoke body ( is:15500 part - vi ) , stainless steel washer ( 4 mm thick ) ( is:15500 part - iv )