supply of miscellaneous materials for maintenance of rli schemes supply of miscellaneous materials for maintenance of different r.l.i scheme. , rubber insertion 5mm thick with proper reinforcement 2 ply conforming to i.s.638 / 79with isi mark with latest amendment suitable for m.s. flange as per is:6392 / 71 with standard drilled holes ( table 11, 17 ) 150mm.dia , nuts & bolts - g.i. / m.s. hexagonal head bolt and nuts bearing is:1363 ( part-i ) / 1992 of product grade -c with latest amendments for bolts & is-1363 ( paft3 ) / 1992 of product grade c with latest amendments for nuts properties / clause for bolts- 4.6 & for nuts- 4.5. both bolts & nuts are to be duly isi certification marked with 2 nos plain ms washer. [ previous se office sanctioned rate ] 5 / 8x3 , 150 mm diawedge with spindle for ntp valve as per sample