procurement of spares for wpil make recovery water pumps ( model 200ds-552 sl. no. hj30053 to 56 ) for ahp of unit no. 1 to 4 sgtps, mppgcl, birsinghpur on single offer basis.- 1 shaft material : ss , aisi-316 part no. 15 2 sleeve material : ss , aisi-420 ht part no. 13 3 gland material : ci ( is : 210 fg-260 ) , part no.11 4 lantern ring material : cf8m , part no. 35 5 mounting ring material : ss , part no. 37 6 bearing housing material : ci ( is : 210 fg-260 ) , part no.32 7 internal circlip material : spring grade steel part no. 46 8 grease retainer plate, part no.14 material : as per oem 9 casing joint stud material : carbon steel, part no. 39 10 casing joint nut material : carbon steel, part no. 40 11 impeller nut material : ss , aisi-304 part no. 42 12 v-ring material : nitril rubber , part no. 23 13 expeller material : aci 23, 26% chrome astm a532, part no. 07