tender for set of rubber gasket and o ring for peak brand transformer oil pump for 3-phase loco. as per drgno- ngp/trs/4/25.196 alt-0. set consist of 1) rubber o ring (ref-1), qty-05 nos. 2) rubber gasket forterminal box (ref- 2), qty-02 nos. (1 set consists of 02 items, 07 nos.) [material to be procured from clwapproved sources for rubber items] note-test slab is required along with material for testing of rubber property.