fixed contact pin with tip assembly r.y. [fixed contact pin with tip assembly r.y.b.n & e for high capacity inter vehicular coupler 500 a,750 v, 3 phase, 50 hz for lhb coaches as per specification no. rdso/pe/spec/ac/0177-2013 (rev.1) with rcf drawing no. lw 71337, alt-b.note:- to be procured from approved vendors of iv coupler as per rdso specification no. rdso/pe/spec/ac/0177-2013 (rev.1)]