supply of set of spare parts for escort make high tensile tight lock aa-h type centre buffer coupler ( cbc ) for lhb coaches. one set consisting of six items as follow , item no.-1, knuckle as escort drg. no.-sk-611 , qty.- 02 nos., item no.-02 knuckle thrower as per escort drg. no.-sk-1560 item no.-04 , qty.-02 nos. item no.-03 rotary lock lifter as escort drg. no.-sk-1656, qty.-02 nos. item no.-4 knuckle pivot pin / main as escort drg. no.-sk-575 - qty.-02 nos. item no.-05 as lock as per escort drg.no.-sk-612, qty.-02 nos. , item no.-06 as manual uncoupling device as per escort drg.no.-sk-466 qty.-02 nos. [ warranty period: 84 months after the date of delivery ]