Tenders for Supply of O Ring Of Size Diameter 160 Mm X Thickness 3 Mm For Jumper Plug Assembly For Inter Vehicular Coupler 500 A, 750 V, 3 Phase, 50 Hz For Lhb Type Coaches Confirming To Rdso Specification No. Rdso/Pe/Spec/Ac/0177-2013 Rev.0 With Rcf Drawing No. Lw71301, Alt. A, Item No. 29. Sealing Ring For Coupling Socket Assembly For Inter Vehicular Coupler 500 A, 750 V, 3 Phase, 50 Hz For Lhb Type Coaches Confirming To Rdso Specification No. Rdso/Pe/Spec/Ac/0177-2013 Rev.0 With Rcf Drawing No. Lw71300, Alt. Nil, Item No. 31 Rubber Cleat For Jumper Plug Assembly For Inter Vehicular Coupler 500 A, 750 V, 3 Phase, 50 Hz For Lhb Type Coaches As Per Rdso Specification No. Rdso/Pe/Spec/Ac/0177-2013 Rev.0 With Rcf Drawing No.Lw71374.