supply of , non interchangeable must change items for overhauling of knorr bremse make aluminium distributor valve to rdsos spec no.-c-k209 ( rev.0 with amendment slip no.-02 ) consisting of 11 items:- ( 1 ) k-ring kbi pt no.- 455921, qty-01no. ( 2 ) tappet, kbi pt no.-i63463, qty-01 no. ( 3 ) valve head, kbi pt no.-b61601, qty-01 no. ( 4 ) diaphragm, kbi pt no.-b35235, qty-01no. ( 5 ) k-ring, kbi pt no.-461522, qty-01 no. ( 6 ) o ring kbi pt no.-c60760, qty-01no. ( 7 ) valve head sealing ring, kbi pt no.-b58852 / 2, qty-01 no. ( 8 ) o ring kbi pt no.-a49275, qty-01 no. ( 9 ) o ring, kbi pt no.-b48655, qty-01 no. ( 10 ) k-ring, kbi pt no.462448, qty no.-01, ( 11 ) valve head, kbi pt no.-i11917, qty-01no.. [ warranty period: 30 months after the date of delivery ]