tender for kit of spares for emergency valve of m/s escorts make modular brake controller type esbc iii(m) comprising of 05 items. specification/drg. no.:- sl. no. description escorts pt. no. qty/set 1. valve plate6203 01 no. 2. sealing washer 6108 01 no. 3. grooved ring 6105 01 no. 4. o ring 6102 02 nos. 5. valve shaft subassembly 6122 01 no.