supply of set of must change rubber items kit.set of must change rubber items kit.,set of must change rubber items kit of schaku coupler as per rdso specification no. 6 1-b-36/rev.68-1, with amnd. slip no.- 1 of october- 2016. one coupler set consisting of following 3 ite ms in plastic pouch kit- ( i ) rubber tube for air pipe coupling as per schaku drawing no. 13-088-03-1 5 (4) or escorts drg. no. sk-763 or sanrok drg. no. 2ed-181-1070 or similar drg. no. of wsf. quantity in one set-02 nos. ( ii ) sealing ring for air pipe coupling as per schaku drawing no. 13-088.03-16 (4) or escorts drg. no. sk-764 or sanrok drg. no. 2ed-181-1071 or similar drg. no. of wsf. quantity in on e set-02 nos. ( iii ) bush polyimide for draw & buff gear of schaku coupler as per schaku drawing no. 40-586-06-4 (4) or escorts drg. no. sk-766 or sanrok drg. no. 2ed-181-1182 or similar drg. no. of ws f. quantity in one set-01 nos. supply only from rdso approved sources acceptable. [ warranty peri od: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] => limited