supply of bulb cotter & o ring , bulb cotter (push rod pin) for bmbs wagon to kbi part no. c162098. as per rdso specificati on no. wd-23-bmbs-2008 (rev.1) with amendment -1 of sept. 2016 [ warranty period: 30 months after t he date of delivery ] ] , o-ring for 1 brake hose for knorr bremse design bmbs. drawing no. : kbi drg. no. a277 63/17 ,material and specification : as per bogie mounted brake system for freight cars; description and ma intenance manual of knorr bremse, issue: 092014 revision: 02 en ; rdso,s spec no. wd-23-bmbs- 2008 ( rev. 1) amendment no.1 of sept 2016 [ warranty period: 30 months after the date of delivery ] ]