tender for a set of spare parts for bmbs wagon consisting of 3 items :- 1) pin clevisto knorr bremse part no. 778111 or prag part no. 778111 , qty - 4nos/set , 2) bush to knorrbremse part no. c140445 or prag part no. c140445 - qty - 4nos/set , 3) dowel sleeve to knorrbremse part no. c140446 or prag part no. c 140446 -qty - 4nos/ set.