supply of high tensile aar h type tight lock centre buffer coupler head with transition screw couplinghigh tensile aar h type tight lock centre buffer coupler head with transition screw coupling,supply of high tensile aar h type tight lock centre buffer coupler head with transition screw coupling and its associated components for fitment on broad gauge passenger coaches of indian railways as per rdso.specn.no. rdso/2009/cg-22, rev -01 one coupler set shall consists of the following - 1.tight lock coupler head with transition screw coupling and its associated components qty. 1 no. 2.balanced draft gear with pivot pin qty. 1 no. 3.supporting device for coupler head with m20 fasteners qty. 1 no. 4.manual uncoupling device with m12 fasteners qty. 1 no. 5.rear carrier plate for draft gear with m16 fasteners qty. 01 no. 6.front carrier plate for draft gear with m16 fasteners qty. 1 no. special condition:- 1. maintenance manual in soft copy and hard copy shall be supplied with item. 2. necessary test certificates as per rdso .specn .no. rdso/2009/cg-22 (rev -01) shall be supplied with item. 3.rev.03 or latest revision of specification rdso/2011/cg-03 referred in rdso/2009/cg-22 (rev -01) shall be followed. 4.tenderer to submit rdso approved drawings at the time of quoting the tender. (safety item). warranty period: 84 months from the date of supply or 72 months from the date of fitment, whichever is earlier as per specification no. rdso/2011/cg-03 (rev.-3). make - frontier alloy steels ltd- kanpur only [ warranty period: 84 months after the date of delivery ]