supply of spare parts for standard deep well hand pump under d.w. and s. division, gumla during the year 2021 22. supply of spare parts for standard deep well hand pump under d.w. and s. division, gumla during the year 2021 22. , spare of india mark ii / iii deep well hand pump conforming to is:15500 ( pt-1 to 7 ) 2004 to be procured only from approved manufacturers or unicef approved qualified supplier & after proper verification of offer sheet inspection certificate marketing and packing etc as per unicefs standard norms. , hexagonal bolt m12x1.75x40mm long common to marks ii & iii , hexagonal nut m12x1.75mm , washer m12 ( 2.5mm thick ) , high tensile bolt m10x1.5x40mm long. , nyloc nut m10x1.5mm , handle axle ( stainless steel ) , ball bearing 6204 z , spacer for handle. , chain with coupling. , hexagonal bolt for front cover m12x1.75mm long. , nitrile rubber cup washer for mark – ii & iii , nitrile sealing ring mark – ii , nitrile rubber seating big for lower valve mark-ii , nitrile rubber seating small for upper valve mark-ii. , hexagonal rod coupling m12x1.75x50mm long. , connecting rod 3mtr. long with coupling and nut ( electrogalvanized ) , cylinder assembly complete set for mark-ii , upper valve assembly complete set for india mark-ii , lower valve assembly complete set for india mark-ii , reducer cap for cylinder mark-ii , upper valve guide ( g.m. ) . , cylinder body with brass liner for im-ii with reducer cap for top and bottom. , check valve guide mark-ii , 32 mm g.i. socket , add gst @ 12%