supply and delivery of different materials for smooth running of different major rli scheme under malda-i ( a-m ) sub-division under malda-i ( a-m ) division under non-plan programme . , deep groove ball bearing size 6307, make-tata, skf ( stainless steel, bore dia 35mm, outer dia 80mm ) , deep groove ball bearing size 6308, make-tata, skf ( stainless steel, bore dia 40mm, outer dia 90mm ) , deep groove ball bearing size 6309, make-tata, skf ( stainless steel, bore dia 45mm, outer dia 100mm ) , deep groove ball bearing size 6310, make-tata, skf ( stainless steel, bore dia 50mm, outer dia 110mm ) , 150mm dia foot valve leather washer is 4038 / 1986 , 150 mm dia rubber insertion 5mm thick with proper rainforcement for raised of flange as per is:6392 ( table-17 ) , 200 mm dia rubber insertion 5mm thick with proper rainforcement for raised of flange as per is:6392 ( table-17 ) , 300 mm dia rubber insertion 5mm thick with proper rainforcement for raised of flange as per is:6392 ( table-17 ) , ms plate flange ( 200mm dia ) conforming is:6391 / 1971 ( table no.-5 ) with latest revision and amendment and duly isi marked thickness -22 mm, with 8 no. 18mm dia hole at 280 pcd. , ms slip on boss flange ( 200 mm dia ) conforming, is-6391 / 1971 ( table no.-12 ) with latest revision and amendment and duly isi marked, thickness-24 mm, with 8 no. 20mm dia hole at 295 pcd. , ms reducer ( 200mm x 150mm dia ) with both end flanged to be manufacture from ms pipe as per technical specification stated 200 x150 ( n.b ) reducer strictly as per is:11428 / 85 ( part-ii ) table-6, with latest revision and amendments.