supply of spare parts for repair and maintenance to im-ii and iii deep well handpump conforming to is 9301-1990 with latest amendment under dws division adityapur for the year 2023-24 , supplying of spare parts of india mark ii & iii deep well hand pump conforming to is: 9301-1990 with latest amendment ( may be read along with 1st amendment to is: 15500 ( part 1-8 ) 2004 along with latest amendment for spare parts common to both india mark ii & iii respectively ) to be produced from only unicef approved qualified supplier and after proper verification of offer sheet, inspection certificate, making, packing etc as per unicef standard norms etc all complete , hexagonal bolt m12 x 1.75 x 40mm long , hexagonal nut m12 x 1.75 , hexagonal high tensile bolt m10 x 1.50 x 40mm long , hexagonal nyloc nut m10 x 1.50 , hexagonal rod coupling m12 x 1.75 x 50mm long , upper valve assembly complete set for india mark ii , lower valve assembly complete set for india mark ii , cheqe valve seat for i.m ii , cheqe valve guide for i.m ii , cylinder assembly complete set for india mark ii , upper valve guide ( gun mettal ) , head assembly ( g.i. ) with front cover, bolt and third plate , connecting rod 3.00 m long with hexagonal coupling & nut ( eletrogal vanished ) , water tank assembly mark ii ( g.i. ) , bearing 6204z , chain with couplin , handleaxle ( stainless steel ) , handle assembly , cylinder body with brass liner for i. m. ii with reducer cap for top & bottom , nitrile rubber cup washer for mark ii & iii , nitrile rubber sealing ring formark ii , nitrile rubber seating big for lower valve mark ii , nitrile rubber seating small for upper valve mark ii , rubber seat retainermark ii ( g. m. ) , reducer cap for c i cylinder mark- ii , add 5% gst ( 2.5% cgst+ 2.5% sgst )