supply of supply of piston valvesupply of piston valve,kit overhauling piston valve to nyab part no. 198866 consisting of 19 items for wdp4/wdg4 locos. 1.round wire netting to part no.b27807-1 no. 2. plate to part no.n53570-1no. 3. toothed ring to part no . a62331/2-1no 4. o ring to part no. a40125/14-2 nos. 5. 0 ring to part no. b39512-2 nos. 6. flat gasket to part no. b62812-1no. 7. compression spring to part no. b76048-1 no. 8. compression spring to part no. b85298- 1 n o. 9. toothed washer to part no. 453576-1no 10. toothed washer to part no. 453578 -1no 11. knorr- k-ring to p art no. 454957 -1 no. 12. knorr- k-ring to part no. 461793-1 no. 13. retaining ring to part no. 465872- 1 no. 14. 0 ring to part no. or111000-1no. 15. o ring to part no. b43723/4-1no 16. compression spring to part no. c852 72- 1 no. 17. valve head to part no. b93280-1no . 18. grooved ring to part no. a18294/5-1no. 19. hexagon nut to part no.466845 - 4nos. [ warranty period: 30 months after the date of delivery ] ]