supply of mechanical materials for different rli schemes under assistant engineer (a-m) memari(a-m) sub-division under burdwan (agri-mech) division under non plan in the district of purba bardhaman for the f.y. 2025-2026. , ci weight for 150 mm dia alfa-alfa valve (as per sample). material for weight shall be cast iron conforming to grade fg 150/200 of is 210. painting: one coat of black japan. , ms spindle for 150 mm dia alfa-alfa valve. material shall conform to aisi ss 410. (as per sample). , 150 mm dia. rubber insertion with hole 150 mm dia. 5 mm thick rubber insertion with proper reinforcement 2 ply cotton fabricas per is: 638/79 with latest amendment, if any. , 12.5 mm graphite square gland packing constructed from high tensile strength ptfe gland packing shall conform to is: 4687/1995. make: champion(model no. 3116)/ hindustancomposites ltd/asseal or equivalent reputed make. , 10 mm graphite square gland packing constructed from high tensile strength ptfe gland packing shall conform to is: 4687/1995. make: champion(model no. 3116)/ hindustancomposites ltd/asseal or equivalent reputed make. , 8 mm graphite square gland packing constructed from high tensile strength ptfe gland packing shall conform to is: 4687/1995. make: champion(model no. 3116)/ hindustancomposites ltd/asseal or equivalent reputed make. , supply & transportation of m.s. hexagonal head nuts and bolts conforming to is 1363(part-i)/1992 of product grade c with latest amendmends for bolts & is 1363(part-3)/1992 of product grade-c with latest amendments for nuts properties /class for bolt-4.6 & for nut-4.5. isi marked.m 12mm x 75 mm (spec. as above) , m 16mm x 75 mm (spec. as above) , m 16mm x 100 mm (spec. as above) , 6307 bearing ,make of bearing: skf/fag/nbc & equivalent reputed make (used in leading cpsu’s of india) conforming to relevant iso standard. both side shielded with c3 clearance. , bearing 6310 (spec. as above) , foot valve leather washer supply ofbest quality 150 mm dia foot valve leather washer (imperial / techno) (is: 1015/2000) (as per sample) , 150 mm dia. m.s heavy duty hose clamp 2.5 mm thick, 45 mm width fitted with galvanized nuts & bolts (2 sets). parent material should conform to grade b of is: 2062/1999. one coat of black japan (type-b) or other.