procurement of spares for besta raw coal feeder of unit no 1 to 4 4 x 210 mw of ph i and ii at sgtps mppgcl birsinghpur , complete drag link chain set for besta raw coal feeder (one set consist of following parts as per drawing). a) chain link with tongue (58 nos. per set) en-8 bs:970-080-m-40 b) chain link without tongue (58 nos. per set) en-8 bs:970-080-m-40 c) chain link pin dia. 25 mm (116 nos. per set) d) split pin (116 nos. per set) spring steel. e) split bush (116 nos. per set) spring steel f) h.t. bolt (m12x35) 232 nos. g) washer 58 nos. h) rcf scrapper bar (29 nos. per set) i. plate m.s. (hardened) ii. angle m.s. (hardened) , pin bush coupling set (rhw-125) (1 set =02 coupling, 01 motor side& 01 gear side) with coupling bolts, (as per drawing) (hsn code:- 8483) material:- c.i. gr.210 , bolt for pin bush coupling (as per drawing) material:- en-8 (hsn code:-7318) bush:-neoprene rubber , scrapper (as per drawing) material – ms (hardened) , bed height adjusting turn buckle for besta raw coal feeder (as per drawing) (hsn code:-7318) , take up spring assembly for rcf (as per drawing) , free end shaft without key way &key (as per drawing) , bed height adjuster assembly (as per drawing) , fixed type –tail end sprocket with key material:- cast steel as per drawing , free type –tail end sprocket with key way material:- cast steel as per drawing , chain link with tongue (as per drawing) material:-en-8 bs:970-080-m-40 , chain link without tongue (as per drawing) material:-en-8 bs:970-080-m-40