supply of lt bushing made of brass of different sizes ( 2 ) supply of lv porcelain bushing suitable for 630 kva to 1000 kva t / f and as per specification , l . t . bushing rod made of brass in the dia size 20mm & 260 mm long and as per is: 3347 part-1 / sec-2 / 1979 with latest amendment ) threading on one end 96mm , other end 53mm , 2no brass hex nut , 3 no brass chuck nut , 1 no brass top and washer , 1 no brass collar nut , 1 no brass stream washer & 1 no sealing washer for stem nitrile rubber , suitable for 250 kva , to 400 kva t / fs . , l . t . bushing rod made of brass in the dia size 30mm & 290mm long and as per is: 3347 part-1 / sec-2 / 1979 with latest ammdement ) , threading one size 100mm other side 75mm , 2 no brass hex nut , 3no brass chuck nut , 1 no brass top and washer , 1no brass collar nut , 1no brass steam was her , & 1no sealing washer for stem nitrile rubber , suitable for 630 kva t / fs . , l . t bushing rod made of brass in the dia size 42mm & 350mm long and as per is: 3347 part-1 sec-2 / 1979 with latest ammdement ) threading on size 140mm other side 100m , 2 no brass hex nut , 3no brass chuck nut , 1no brass top and washer , 1no brass collar nut , 1no brass stem washer , & 1 no sealing washer for stem nitrile rubber , suitable for 1000 kva t / fs . , lv porcelain bushing 1 . 1 kv and as per is: 3347 ( part-ii ) with latest ammdement . ( i ) 1 . 1 kv 1000 amp . suitable for 630 kva transformer , ii ) 1 . 1 kv 2000 amp . suitable for 1000 kva transformer