supply of overhauling kit for unloader valve (kbi part no. 1197710) of electric ccb for 3 phase locomotivesoverhauling kit for unloader valve (kbi part no. 1197710) of electric ccb for 3 phase locomotives,overhauling kit for unloader valve (kbi part no. 1197710) of electric ccb f or 3 phase locomotives. one set consist of 04 items 04 nos. (1) compression spring part no. c150925, qty.- 01 no. (2) piston assly. part no. 1175554, qty.- 01 no. (3) o-ring part no. c150951, qty.- 01 no. (4) gasket part no. c150952, qty.- 01 no. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]