supply of bearing piece assembly with locking arrangement for single piece uncoupling gear. , bearing piece assembly with locking arrangement for single piece uncoupling gear. dra wing no. : rdso s drg. no-wd-00046-s-01, alt. 7 , consisting of item-4,5,6,and 7 (4, 6, 7 one number each and 5 two numbers). (locking arrangement to be supplied in welded condition with bearing piec e assembly and one no. of item no. 5 i.e. washer to be supplied in loose condition with assembly) mate rial and specification : is: 2062:2011(rev. 7), amend. no. 1 of nov. 2012, grade- e250a [ warranty p eriod: 30 months after the date of delivery ] ]