tender for set of gasket for inter vehicular coupler (zs coupling) as perrdso/pe/spec/ac/0177-2013 (rev.0). each set consists of 02 items in 03 nos. 1) foundationrubber gasket for iv coupler socket assembly. qty -01 no 2) sealing o ring gasketof coupler body and cover for iv coupler socket assembly. qty-02 nos .