supply of insulating base with fixing screw kit, for coupling socket assembly of inter-vehicular coupler (500a, 750v) of lhb coaches, as per rcf drawing no. lw71303 alt-insulating base with fixing screw kit, for coupling socket assembly of inter-vehicular coupler (500a, 750v) of lhb coaches, as per rcf drawing no. lw71303 alt-,insulating base with fixing screw kit, for coupling socket assembly of inter-v ehicular coupler (500a, 750v) of lhb coaches, as per rcf drawing no. lw71303 alt-b and c onforming to rdso specification no. rdso/pe/spec/ac/0177-2013 (rev. 1). [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] carriage stores depot ajmer, rajasthan 25.00 numbers