procurement of spares for track machines,axle (pin) , as per plasser part no. ud150.1555, drg. no:rdso/tm/10/16 ,spec no:tm/hm/6/ 375 ,make: plasser or its equivalent ] , axle (datum wheel), as per plasser part no. ud236.3001.8a, make: plasser or its equiv alent ] , flange, as per plasser part no.ud63.1008, rdso/tm/11/17 & tm/hm/6/393 make: plasse r or its equivalent ] , t-bolt with double nut & spring washer as per plasser part no. 61.04.218a, make : pla sser ind or its equivalent ] , lining roller complete assy with bushes pin and nut & washers., as per plasser par t no.ud313-2700-iv sp-1668/1676, make:plasser ind or its equivalent indian make/brand ] , switch ring as per plasser part no. wn75.1950-3, make- plasser or its equivalent ] , supporter complete as per plasser part no: re20.305 and sub part no. re11.09.3006 , make: plasser or its equivalent ]